PLS HELP!! I’LL GIVE 20 points
1.Meiosis is a type of cell division that is specific to?
A. daughter cells
B. sperm cells
C. sex cells
D. egg cells
2.A new species of plant is found in the rainforest. How can genotyping help scientists to determine what the plant is?
A. Can determine which diseases it is resistant to for further study
B. Can analyze the proteins that are essential for survival to help determine the plants function
C. Can compare similarities found in reference sequences to determine any potential relations
D. can determine where the species originated from and which group migrated it to the rainforest
3.How are somatic cells different from gametes? (1 point)
A. Somatic cells are sex cells
B. Somatic cells do not go through cell division.
C. Somatic cell mutations are not passed to the next generation.
D. Somatic cells contain half the number of chromosomes.
4.How are mitosis and meiosis similar? (1 point)
A. They produce daughter cells with the same number of chromosomes.
B. They are both forms of cell division.
C. They produce the same number of daughter cells.
D. They are both caused by mutations.
5.How are mutations and meiosis similar? (1 point)
A. They both can pass on genetic variations that can be inherited.
B. They both impact the phenotypes of somatic cells.
C. They both always sort genetic information in the gametes.
D. They both can only originate through the process of reproduction.
Answers
Meiosis and mitosis are both types of cell division. Somatic mutations can be generated by mitosis, whereas germline (meiotic) mutations can be generated by meiosis.
Meiosis is a type of cell division that is specific to cell sex cells (Option C).The outcome of meiosis is four haploid (n) daughter cells, which develop into gamete/sex cells. Genotyping helps scientists to compare similarities found in reference sequences to determine any potential relations (Option C).Genotyping is a technique used for identifying individuals by sequencing and then comparing genetic sequences.Somatic cells are different from gametes because somatic mutations are not passed to the next generation (Option C).Somatic mutations cannot be inherited, whereas germline mutations in the gametes can eventually be passed onto offspring.Mitosis and meiosis are similar because they are both forms of cell division (Option B).Mitosis is a type of cell division that generates two identical daughter cells, each one containing the same genetic information as their parent cell. On the other hand, meiosis is a type of reductional cell division that generates four haploid (n) daughter cells from a diploid (2n) parent.Mutations and meiosis are similar because they both can pass on genetic variations that can be inherited (Option A).Meiosis creates genetic variation by the process of crossing over or recombination, which is the interchange of genetic material between non-sister chromatids.In conclusion, meiosis and mitosis are both types of cell division. Somatic mutations can be generated by mitosis, whereas germline (meiotic) mutations can be generated by meiosis.
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Answer:
1. C. sex cells.
2. C. can compare similarities found in reference sequences' to determine any potential.
3. C. somatic cell mutations are not passed to the next generation.
4. B. they are both forms of cell division.
5. A. they both can pass on genetic variations that can be inherited
Explanation:
I just took the test and got 100%
Related Questions
Identify a point source and a non-point source pollutant in your environment. Write a short report discussing these pollutants.
Answer: Point source pollutant: My school is situated near a river. A wastewater treatment plant is a few miles away. The plant uses certain chemicals to treat wastewater, but releases effluents into the river. Although the plant regulates the released effluents, the treatment system gets overloaded during heavy rainfall. As a result, untreated chemicals and wastes enter the river. The plant thus becomes a point source pollutant for the river. The wastes and chemicals entering the river adversely affect growth of plants and fishes in the water body.
Non -point source pollutant: I live in a residential area that has a groundwater reservoir. Last month, the authorities in my area complained that the water in the reservoir was getting polluted. On investigating, they found that rainwater picks up debris and pollutants from roads and sidewalks as it flows on its path. The polluted water enters waterways that are connected to the groundwater reservoir. The debris and pollutants are many in number, and it was difficult to trace exactly where the rainwater picked them up. However, these pollutants affect large areas because the water from the groundwater reservoir reaches many homes. Therefore, the debris and pollutants are non-point source pollutants.
Answers
Thank you for giving the answer with it! <3 This helped!
Answer:
Point source pollutant: My school is situated near a river. A wastewater treatment plant is a few miles away. The plant uses certain chemicals to treat wastewater, but releases effluents into the river. Although the plant regulates the released effluents, the treatment system gets overloaded during heavy rainfall. As a result, untreated chemicals and wastes enter the river. The plant thus becomes a point source pollutant for the river. The wastes and chemicals entering the river adversely affect growth of plants and fishes in the water body.
Non -point source pollutant: I live in a residential area that has a groundwater reservoir. Last month, the authorities in my area complained that the water in the reservoir was getting polluted. On investigating, they found that rainwater picks up debris and pollutants from roads and sidewalks as it flows on its path. The polluted water enters waterways that are connected to the groundwater reservoir. The debris and pollutants are many in number, and it was difficult to trace exactly where the rainwater picked them up. However, these pollutants affect large areas because the water from the groundwater reservoir reaches many homes. Therefore, the debris and pollutants are non-point source pollutants.
Explanation:Pato
Elijah is learning about the Greenhouse Effect in school. He explains to his mother that the gases in the atmosphere can act similarly to the window of a greenhouse. Elijah is correct due to which of the following?
A. The gases of the atmosphere do not allow any energy to leave Earth’s surface.
B. The gases of the atmosphere form a clear and transparent solid.
C. The windows of the greenhouse are made of the carbon dioxide and water vapor.
D. The window of the greenhouse allow energy to enter but then trap some of it for recirculation.
Answers
Answer:
D
Explanation:
The green house gasses trap heat just like the windows of the green house.
Which of the following are true about earth axis choose two correct answers. A a line that passes through earths equator B a line around which earth rotates C a line along which earth travels around the sun D a line that passes through earths north and south poles E a line from earths surface to its center
Answers
Our eye color, hair color, or if we have freckles or not, are all considered (4)___11. The traits that we inherit
are determined by small segments of DNA called (5). We get these features from our parents; the
transfer of traits from parents to offspring is called (6)_____. Some traits are always seen if they are
inherited, and these are called (7)___... Brown eyes are an example of this type of trait. Blue eyes,
however, are an (8)___ trait and are only seen in the absence of a dominant trait.
Answers
Answer:
(4) traits
(5) genes
(6) heredity
(7) dominant
(8) recessive
Explanation:
Traits are inherited, and coded by genes. Genes are DNA segments placed in chromosomes. Alleles code for different expressions of the same trait. 4) trait / 5) gene / 6) heredity / 7) dominant / 8) recessive.
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We know that phenotype is influenced by genotype and the action of the environment.
Part of an individual's phenotype is due to the genotype -inherited by the parents-, and the other part is due to the environment, where the individual develops.
According to this, inheritability might be defined as the proportion of phenotypic variation that might be due to genetic effects.
Regarding the genetic factor, inheritability is conditioned to heredity.
Heredity might be understood as the process of transmission of different characteristics through generations.
Morphological and behavioral characteristics are traits.
Genes are the hereditable DNA fragments that transmit the information needed to specify traits. This information passes from parents to offspring, generation to generation.
Genes are physically placed and arranged in the chromosomes. Each chromosome contains many genes that might vary in length.
Genes are inherited and define the individual's phenotype.
Alternative forms of genes -alleles- is what determine the phenotypic variation.
Each individual inherits a set of genes from each parent that combine during fertilization.
According to this combination, each individual will express a phenotype that is the product of a mixture between both parents' genetic charges.
According to Mendel, each individual has a pair of factors -alleles-, and each factor codes for an alternative form of the same trait -for instance, tall and short-. He thought that these factors separate -segregate- during gamete formation.
In complete dominance, the dominant allele completely masks the recessive allele effect. This is evident in heter0zyg0us individuals that only express the dominant trait. The dominant allele is hiding the expression of the recessive allele.
Knowing this, we can complete the sentences.
Our eye color, hair color, or if we have freckles or not, are all considered (4) _CHARACTERISTICS or TRAITS_The traits that we inherit are determined by small segments of DNA called (5) GENES .We get these features from our parents; the transfer of traits from parents to offspring is called (6)_HEREDITY_. Some traits are always seen if they are inherited, and these are called (7)_DOMINANT TRAITS_. Brown eyes are an example of this type of trait. Blue eyes, however, are (8) _RECESSIVE_ traitS and are only seen in the absence of a dominant trait.---------------------------------------
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what is the animal with unique characteristics? to be choosen from every other ones?
pls!! help me at least give me your ideas, what animal you most like and the reason you like it!!
Answers
the animal i like the most is the bald eagle and because it represents the U.S.A
A positively charged particle has great difficulty penetrating a target nucleus because the target nucleus has
1.a positive charge, which repels the particle
2.a negative charge, which attracts the particle
3.the protection of surrounding electrons
4.a very high binding energy
Answers
Answer:
4cycycyfyccucyctxycychctcycvyccyccyvyctx
Answer:
1) a positive charge which repels the particle.
Explanation:
YA WELCOME
(WORTH 30 POINTS!!!) Choose the answer that best describes the geologic process that contributes to the formation of fault-block mountains. A. The Earth's crust is pushed together which tilts layers of rock on their side producing steep scarps. B. The Earth's crust is pulled apart creating deep folds and then pushed together generating steep scarps. C. The Earth's crust stretched from swelling underneath and vertical movement by blocks generates steep scarps. D. The Earth's crust is pushed together which forces up blocks vertically creating steep scarps.
Answers
B) The Earth's crust is pulled apart creating deep folds and then pushed together generating steep scarps to create fault-block mountains
Answer:
B
Explanation:
*
What type of vaccine is made of part of the pathogen, called the antigen?'
Answers
Answer:
Subunit Vaccines. Instead of the entire pathogen, subunit vaccines include only the components, or antigens, that best stimulate the immune system.
Explanation:
In what organisms does alcoholic fermentation take place?
O yeast and some bacteria
O viruses
O fruit flies
O plants
Answers
Answer:
yeast and some bacteria
What is the phenotype of a person whith the genotype I^Ai?
Answers
Answer:
Type A
Explanation:
Mode of inheritance for blood is tricky, but type A and B are codominant, while type A and type B are dominant over O. So in this situtation
I^Ai is A because type a is dominant over o
What process breaks glucose down to be used as an energy source?
Answers
1 Control of the mosquito population helps manage outbreaks of _____.
malaria
typhoid fever
bacillary dysentery
rabies
2 Infantile paralysis is another name for _____.
polio
hydrophobia
typhoid fever
ringworm
3 Travelers to Central and South America can get vaccinations for _____.
yellow fever
rabies
meningitis
viral pneumonia
Answers
Answer:
1. Malaria
2. Polio
3. rabies
Explanation:
Hope I've helped
The control of the mosquito population helps in managing the outbreaks of malaria. Infantile paralysis is another name for polio. Travelers to the Central and South America can get vaccinations for rabies. Thus, the correct options for 1, 2, and 3 are A, A, and B, respectively.
What is Malaria?Malaria is a serious diseases which could be a fatal disease sometimes and it is caused by a parasite that commonly infects a certain type of mosquito species which feeds on the human blood. People who get the malaria infection are typically very sick with high fevers, shaking chills, and flu-like illness and other symptoms.
Infantile paralysis is another name used for polio. Polio is a condition which is caused by a virus that mainly affects the neurons in the spinal cord or the brain stem. In its most severe form, polio infection can lead to a person being unable to move certain limbs or joints, also called paralysis.
Therefore, the correct options for 1, 2, and 3 are A, A, and B.
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How are the number of representatives in the house determined?
Answers
what does mitosis diagram look like
Answers
Answer:
here is a picture. hope this helps
Explanation:
Answer:
https://byjus.com/biology/mitosis/
Explanation:
I used the first diagram in science class and it was very helpful
How do DNA sequences eventually lead to traits?
Answers
Answer:
Traits are determined by genes so it's the manifestation of a gene coded for the DNA :3
Explanation:
:3
What is meant by the statement “ Viruses are cell specific” ?
Answers
Answer:
Viruses can infect only certain species of hosts and only certain cells within that host. The molecular basis for this specificity is that a particular surface molecule
So they are cell specific
Explanation:
Answer:
They only go after certain cells
Explanation:
An example is when virus first attack White Blood Cells when they enter the bloodstream.
What is the origin of a warm, wet air mass?
Answers
Populations can have variety, despite being made up of
the same species. If a population has different expressed
traits, this can be due to different inherited alleles. The
frogs below are the same species, but they have different
shades of green based on their inherited alleles. In a
particular environment, lighter green frogs are easier to see
by predators. Explain how natural selection could lead to a
change in allele frequency.
Answers
Answer:
The lighter frogs will be eaten and will not be able to reproduce offspring with the light green trait. Darker green frogs will be able to reproduce more dark green frogs. Eventually most/all frogs will be a darker green because they carry a trait that improves chances of survival.
How can evolutionary change in one species lead to evolutionary change in another species that it is associated with? Include an example to support your answer.
Answers
Evolutionary change in one species lead to evolutionary change in another species that it is associated with by adaptive mechanisms.
What is evolution?Evolution is a process of gradual cumulative changes which occurs in organisms over a long period of time resulting in the formation of new species.
Evolution in one species results in evolution in a closely related species. For example, the evolution of resistance by trees to insect pests results in similar evolution in insect pest for development of mouth parts that enables them to feed on the plants.
Therefore, evolutionary change in one species lead to evolutionary change in another species that it is associated with.
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using the images provided, explain what each image illustrates. You may cite specific evidence from each of the three images.
Answers
The Image provided Illustrates ; The effect of climate change of the years on sea surface temperature
Sea surface temperature
Sea surface temperature is the measurement of the temperature of water closest to the surface of the sea/ocean. The image illustrates the effect of climate change on sea surface temperatures. The temperature has risen over the days in most part of the world from 1901 - 2015 due to change in climatic conditions caused by human and natural factors.
Hence we can conclude that the Image provided Illustrates ; The effect of climate change of the years on sea surface temperature.
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base your answer on your knowledge modern genetic techniques. what is the name of the process where genetically identical plants are produced from the cells of a single plant ?
a) screening
b) karyotyping
c) amniocentesis
d) cloning
e) genetic engineering
Answers
Answer:
The answer is C cloning.
A species of fly can either have the dominant trait of red eyes, or the recessive trait of brown eyes. If one heterozygous fly mates with a brown eyed fly, what percentage of the offspring would you expect to have
Answers
Answer:
The correct answer would be -
50% heterozygous red flies and 50% recessive brown eyes flies in offspring
Explanation:
This is given that a species of fly has two traits for the eye red eye which is the dominant trait and can be represented by R and the brown eyes trait which is recessive and represented by r.
Given: heterozygous fly which means have both traits gene but as Red is dominant it will have red eyes mates with recessive brown eye fly.
Rr × rr
gametes: R, r and r, r
then,
R r
r Rr rr
r Rr rr
There is 50 % recessive brown eyes flies in offspring and 50% heterozygous red eys offspring.
you can only answer yes or no for each question.
Yes
No
Evaluation Question
Did you gather sufficient evidence to create your original explanation?
Does your original explanation thoroughly describe how energy and matter move through the environment under both aerobic and anaerobic conditions?
Did you research additional information about chemosynthetic organisms to revise your explanation?
Did you write an additional paragraph explaining what you learned and how it changes your original explanation?
Are your explanations clear and coherent?
Are your paragraphs free of spelling, grammatical, and punctuation errors?
Answers
Answer:
broo this arent even questions. just say yes
Explanation:
HELP
Which phrase best describes a point source of water pollution?
Answers
Pipe releasing wastewater from a paper plant describes a point source of water pollution.
What is Water Pollution?
Water pollution is defined as the release of toxic substances into surface and subsurface of water bodies such as oceans, seas, rivers, lakes etc. where these toxic substances interferes in the daily lifecycle of the natural functioning of ecosystem.
Water bodies can be polluted through different methods including pathogenic microorganisms, fertilizers releases and plants nutrients or release of the radioactive substances.
Pollutants enter the water environment from two main types of sources:
- Point Source
- Non Point Source
What is Point Source of water pollution?A point source as the name suggest is the single source of pollution which is specific and identifiable.
It is easy to identify and thus can be easily tracked and suitable actions can be taken to either reduce or prevent the pollution from point sources.
Example- Pollution cause through pipe discharge
What is Non Point Source of Pollution?A non point source of pollution is referred to that kind of pollution where there is no specific source and pollution is causing either from one specific source or through different sources.
It is also called as Diffuse Pollution and it impacts larger area.
It is often associated with particular land uses as opposed to point sources.
Example- Urban land use, Agricultural land use
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the flow of energy in some australian food chains is modeled in the energy PYRAMID BELOW
Answers
Answer:
C ring-tailed opossums ur welcome
Explanation:
3. Artana collects Information on 24 organisms and groups them based on the Linnaean system. Her friend argues that
she should not just put the common name of the organism but should also list the organisms' genus and species names.
Ariane argues that she did enough work and doesn't need to add more research. Which evidence could convince Arana
to add more information?
A. The common name does not sound scientific
3. The genus and species are Latin and easier to read.
C. The common name can change depending on region.
D. The genus and species are a broad level of classification
Answers
Answer: D. The genus and species are a broad level of classification Hope it helped =D
4. Which of the following best describes how LAMARCK would explain giraffes with long necks? A. Long-necked giraffes eat more grass that short-necked giraffes, so their necks grow longer. B. Natural variation in the population produces some longer and some shorter-necked giraffes, and necked giraffes can reach food more easily C. Some giraffes have acquired longer necks by stretching to reach food and passed the trait to the D. Giraffes just started out with long necks and haven't changed.
Answers
Answer:
C. Some giraffes have acquired longer necks by stretching to reach food and passed that trait on.
Explanation:
What is Mendol’s contribution to genetics?
Answers
Answer:
He proved that organisms get their genes inherited from their parents, they come in gene pairs.
Which statement is true regarding meiosis in cells?
O In anaphase I, sister chromatids are pulled apart at the centromere.
O In prophase II, homologous chromosomes are paired up in a tetrad.
O The daughter cells do not undergo cytokinesis at the end of meiosis
The products of telophase I are two haploid daughter cells..
Answers
answer : the last one is true, yeah !!
d :: the products of telophase 1 are two haploid daughter cells ..
Chromosomes finish migrating to opposing ends of the cell in telophase I. Cytokinesis then creates two daughter cells. Therefore,option (D) is correct.
What happens is telophase I?The parent cell has two poles at Telophase I of the meiotic cycle, each with a full complement of haploid chromosomes (which still have their sister chromatids). Now, a cleavage furrow forms, separating the cytoplasm of the cell in two (a proccess ultimately called cytokinesis).
The homologous chromosomes divide into distinct nuclei during telophase I. The cell restores its nuclear membrane, deconstructs the microtubules and spindle fibers, and then initiates cytokinesis. After then, the cell enters a phase of rest known as interkinesis.
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If the average length of a double helix in human chromosome is 3.9 cm, approximately how many base pairs are present in such chromosome?
Answers
Answer:
The average length of a double helix in human chromosome whose length is 3.9 cm has approximately 114.7 million base pairs
Explanation:
Lenght of DNA = number of base pairs * distance between consecutive base pairs
The distance between two consecutive base pairs bonded by hydrogen bonds is 0.34 nm.
If the average length of a double helix DNA molecule in human chromosome is 3.9 cm, the average number of base can then be calculated using the formula below:
Average number of base pairs = length of DNA ÷ distance between consecutive base pairs
Average number of base pairs = 3.9 cm/ 0.34 nm = 0.039 m/ 0.00000000034 m
Average number of base pairs = 114705882.4
Therefore, the average length of a double helix in human chromosome whose length is 3.9 cm has approximately 114.7 million base pairs