Answer:
4 of the 8 pups should have white hair.
Explanation:
for a litter of 4 pups there is a 50% chance of white hair vs brown hair.
Answer: 4
Explanation: white hair is recessive
Bb x bb —> Bb:bb = 1:1
Why is it important for others to believe in science
Answer:
because science is one of the most important channels of knowledge
Explanation:
because of science you can create a new knowledge, improving education, and increasing the quality of our lives.
I hope it can help.
I NEED HELP ASSAP
how can you tell whether two magnets will attract eachother, repel eachother, or both
plz explain in a few sentences
Answer:
Explanation:
there is a positive side and a negitive side to magnets two of the same side of the magnet will repel oppisites will attract
positive+positive=repel
positive+negitive=atract
Answer:
attract: when two magnets will attract, S and N will be facing each other
repel: when two magnets will repel, S and S or N and N will face each other
both: when two magnets will attract and repel, the magnets won't be placed in the same way. N will be facing the middle of both S and N or S will be facing the middle of N and S
Explanation:
this is what i learned i hope it's right if not i didn't say nothing
During what phase of meiosis does sister chromatids align at the equator?
the structure labeled A in the figure below is called the
Answer:
Centromere
Explanation:
Connects sister chromatids
The structure labelled A in the figure is a centromere.
What is a centromere?The centromere is a region of the chromosome that is constricted. The centromere plays an important role in the division of cells during both the processes of mitosis and meiosis.
The centromere is simply the region of the chromosome where the spindle fibres attach. Therefore, when the spindle fibres attach to the centromere, they pull the sister chromatics in the opposite directions of the cell during cell division.
Thus, at the end of the cell division, each of the daughter cells gets one-half of the chromosome containing identical DNA. The centromere is thought to be the middle region of the chromosome, even though it is often not in the middle. It is simply the region where the chromosomes are most constricted
The centromere separates the chromosome into the P arm and the Q arm. These are simply the names given to the short arm and the long arm of the human chromosome respectively.
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Why are all of us considered scientists to some extent?
O A. Everyone has questions about the natural world.
O B. Everyone writes and tests hypotheses.
O C. Everyone takes measurements and collects data.
O D. Everyone performs scientific experiments.
Answer:
A
Explanation:
well most of these are ture (Only due to school) the one answer that would apply to people outside of a school setting it A
1. Populations do not permanently remain at carrying capacity T/F
Describe the connection between limiting factors and invasive spicies
Answer: factors that limit a population size are limiting factors. Biotic potential is the amount of organisms that could be supported in an ecosystem if plenty of resources were available. Factors that cause a population to increase are 1)births: the number of births in a population in a certain period of time. 2) immigration: when organisms move INTO a population.
Explanation:
some examples of limiting factors are natural hazards, amount of food, amount/quality of water and air, predators deforestation.
If muscle A contracts and causes movement of some sort, and muscle B helps muscle
A accomplish this task, and muscle C does the opposite of A, then muscle A is a(n)
muscle, muscle B is a
muscle, and muscle C is aln)
muscle.
Answer:
RESPUESTA:OPCION B espero te ayude
A accomplish this task, and muscle C does the opposite of A, then muscle A is a antagonist to prime mover.
What is antagonist muscle?muscles can only pull. They typically work a joint in pairs because of this. When a body part is moved, one of the pair's muscles contracts; when the body part is brought back to its starting position, the other muscle in the pair contracts.
Antagonizing pairs of muscles are those that function in this way. When two muscles are antagonistic, one contracts while the other relaxes or lengthens. The muscle that is lengthening or relaxing is referred to as the antagonist, while the muscle that is contracting is referred to as the agonist.
Therefore, A accomplish this task, and muscle C does the opposite of A, then muscle A is a antagonist to prime mover.
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Through what process can scientists artificially change the DNA code of organisms?
A)DNA fingerprinting
B)Polymerase Chain Reaction
C)Cloning
D)Recombinant DNA
Answer:
cloning is the right answer
Through Recombinant DNA scientists can artificially change the DNA code of organisms.
What is recombinant DNA?Recombinant DNA is a term used to describe the process of creating new combinations of DNA from different sources. This is done by cutting DNA molecules from different sources and joining them together, creating a recombinant molecule.
This process is often used in biotechnology for applications such as creating new vaccines, improving crop yields, and producing therapeutic proteins. Recombinant DNA technology plays a crucial role in many areas of modern biology and medicine, including genetic engineering, gene therapy, and drug discovery.
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A cell has two pairs of submetacentric chromosomes, which we will call chromosomes Ia, Ib, IIa, and IIb (chromosomes Ia and Ib are homologs, and chromosomes IIa and IIb are homologs). Allele M is located on the long arm of chromosome Ia, and allele m is located at the same position on chromosome Ib. Allele P is located on the short arm of chromosome Ia, and allele p is located at the same position on chromosome Ib. Allele R is located on chromosome IIa and allele r is located at the same position on chromosome Ib. Allele G is located on the long arm (q arm) of chromosome Ia, and allele g is located at the same position on chromosome Ib. Allele N is located on the q arm of chromosome IIa and allele n is located at the same position of chromosome IIb.
Required:
a. Draw these chromosomes, identifying genes R, r, G, g, N, and n as they might appear in metaphase I of meiosis. Assume there is no crossing over.
b. Taking independent assortment and the subsequent random separation of chromosomes in anaphase I, draw the chromosomes, with genes identified, present in all possible gametes that could result once this cell completes meiosis. As above, assume there is no crossing over. Explain in your own words what is meant by independent assortment.
Answer:
Note: You will find the chromosomes and the gametes in the attached files
Chromosomes:
IA ----------G-----о---------IB -----------g-----о----------IIA --------N--------------о------R----IIB ---------n--------------о-------r----Gametes:
Gamete 1: GNR Gamete 2: Gnr Gamete 3: gNRGamete 4: gnrIndependent assortment occurs when the alleles of two or more different genes distribute in the gametes independently from each other.
Explanation:
Available data:
two pairs of submetacentric chromosomes
IA -------------------о-----------
IB -------------------о-----------
IIA ----------- ------------о------------
IIB ------------------------о------------
chromosomes Ia and Ib are homologs
IA -------------------о-----------
IB -------------------о-----------
chromosomes IIa and IIb are homologs
IIA -----------------------о------------
IIB ------------------------о------------
Allele M is located on the long arm of chromosome Ia, and allele m is located at the same position on chromosome Ib
IA -------M----------о-----------
IB -------m----------о-----------
Allele P is located on the short arm of chromosome Ia, and allele p is located at the same position on chromosome Ib.
IA -------M----------о------P---
IB -------m----------о------p----
Allele R is located on chromosome IIa and allele r is located at the same position on chromosome IIb.
IIA ------------------------о------R----
IIB ------------------------о-------r----
Allele G is located on the long arm (q arm) of chromosome Ia, and allele g is located at the same position on chromosome Ib.
IA -------M---G-----о------P---
IB -------m----g-----о------p----
Allele N is located on the q arm of chromosome IIa and allele n is located at the same position of chromosome IIb.
IIA --------N--------------о------R----
IIB ---------n--------------о-------r----
A). Draw these chromosomes, identifying genes R, r, G, g, N, and n as they might appear in metaphase I of meiosis. Assume there is no crossing over.
IA ----------G-----о---------
IB -----------g-----о----------
IIA --------N--------------о------R----
IIB ---------n--------------о-------r----
During metaphase I, homologous pairs together migrate to the equatorial plane, where they randomly aline with their kinetochores facing opposite poles. The random arrangement of tetrads is different in every cell going through the meiosis process. There is no equal alinement between two cells. When tetrads aline in the equatorial plane, there is no predetermined order for each of the homologous chromosomes of each tetrad to face one of the poles and then migrate to it while separating. Any chromosome of the homologous pair might face any of the poles and then migrate to it. Each of the chromosomes has two possibilities for orientation at the plane. When the new haploid cells are formed, the number of variations in each cell is also different and depends on the chromosomes that form that cell. This random order in the equatorial plane is what introduces variation into the gametes. It is almost impossible that two gametes resulting from meiosis will get the same genetic charge.
B). Taking independent assortment and the subsequent random separation of chromosomes in anaphase I, draw the chromosomes, with genes identified, present in all possible gametes that could result once this cell completes meiosis. As above, assume there is no crossing over. Explain in your own words what is meant by independent assortment.
Independent assortment occurs when the alleles of two or more different genes distribute in the gametes independently from each other. In other words, a gamete receives an allele from a gene that does not depend on nor influence the allele of another gene in the same gamete. This can only be applied to independent genes. An organism gets only one of the members of the chromatids pair of each parent.
During gamete formation in meiosis, the pairs of homologous chromosomes separate after crossing over, and then chromatids sisters also separate, resulting in the formation of four gametes. Each gamete has different information from the combination of homologous chromosomes belonging to the father and to the mother.
There are four possible combinations, considering that there is no crossing over.
Gamete 1: GNRGamete 2: GnrGamete 3: gNRGamete 4: gnr
The neurotransmitter thought to be involved in learning and memory is:
1) acetylcholine.
2) norepinephrine.
3) glutamate.
4) glycine
5)GABA
what is a reactant of photosynthesis
Answer:
water carbon dioxide and energy
the products are glucose and oxygen
Explanation:
Your teacher gives you a task in science class. You must decide which of the five samples you are given are alive or were once alive. One specimen is a crust gray-green object. What is the BEST clue you could use to decide: living thing or not a living thing.
A) Does it move?
B) Does it have DNA?
C) Is it made of cells?
D) Can it make its own food?
The best clue that can be used to decide living thing or not a living thing is the observation of living or dead cells present in the specimen. All the living or dead organisms exhibit cells. Cell is a structural and functional unit of life. The growth and metabolism of living organism are dependent upon a cell. A cell in a life form exhibit organelles and components which are not found in non-living objects
The BEST clue you could use to decide: living thing or not a living thing- is option C. is it made of cells and
The living things have some basic characteristic features of life in them that help in determining if an object or thing is living or nonliving thing. these characteristic can be present in all or some, are as follows:
Cellular organization - made of cell is very basic trait of life of every living being.the ability to reproduce - it is present in almost every living thing it could be sexual or asexual.growth & development - living things grow and developenergy use - use energy to perform various functionshomeostasis - regulate according the environmentGenetic material : it can have DNA as genetic materialthus, there is two options only that present in every living organism that are made of cells and presence of DNA, but for DNA one need to investigate thoroughly so the correct answer is - C) Is it made of cells?
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How many holes are in the human body?
Project due today.
Answer:
7
Explanation:
"Seven natural body openings or orifices providing access to an internal cavity through a natural passage called a canal, duct or meatus."
9. An organism's physical traits or visible appearance
Genotype
Pedigree
Chromosome
Phenotype
Answer:
The term "phenotype" refers to the observable physical properties of an organism; these include the organism's appearance, development, and behavior. An organism's phenotype is determined by its genotype, which is the set of genes the organism carries, as well as by environmental influences upon these genes.
Explanation:
phenotype option D is the correct answer of this question .
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what is peace and conflict??
The bonds that link many water molecules together to form a water drop are:
ionic
nuclear
covalent
hydrogen
Answer:
covalent
Explanation:
covalent bonds occur when two atoms-in this case oxygen and hydrogen share electrons with each other
How “Competition in an ecosystem” is playing a role in life?
competition plays a very important role in ecology and evolution. The best competitors are the ones who survive and get to pass on their genes.
Which of the following would NOT be considered an agricultural pest?
an insect chewing holes in leaves
a dog lying among the crops
a rabbit eating growing vegetables
a mole digging tunnels beneath the crops
Answer:
A dog lying among crop
Explanation:
A insect, and mole are considered pest. And a rabbit eating growing vegetables, well if the rabbit eats the growing vegetables then there not growing.
Answer: The correct answer is a dog lying among the crops
Explanation: This answer has been confirmed correct.
A dog is a pet and is not causing damage to the crops. The other three options are all harming the plants (chewing, eating, and digging tunnels).
You have isolated a new single gene mutation in zebrafish you call Casper because the mutant fish are clear (no pigments in the scales). You perform the following crosses: Cross Progeny Wild type X Casper 20 clear, 19 normal Casper X Casper 21 clear, 10 normal a. You notice that each cross produced a similar number of clear offspring but different number of normal offspring. What is going on here
Answer and Explanation:
Due to technical problems, you will find the complete answer and explanation in the attached files
Phenotype of offspring:—-?
Genotypes of offspring:—-?
Lol I need help
Answer:
The correct answer is -
The phenotype of offspring (first cross or F1): 100% tall
The genotype of offspring (first cross or F1 - 100% Tt or heterozygous)
The phenotype of offspring in F2 (F1 × F1) - 3:1 (3 tall: 1 dwarf)
The genotype of offspring in F2 (F1 × F1) - 1:2:1 (One dominant tall: two heterozygous tall: one dwarf)
Explanation:
In this experiment of Mendel, Mendel selected the pea plant as it has various characters, short life span, and easy to breed. For this, he used two true breed lines, tall plants that had dominant allele TT and dwarf plant tt (recessive). In presence of the dominant allele, recessive alleles do not show their characteristics and only express if both alleles are recessive.
In the first cross of TT and tt
Gametes: T and t
offspring: Tt
the offsprings are all tall and heterozygous which means one dominant and one recessive allele.
second cross or F1 × F1
Tt × Tt
gametes: T, t and T, t
offspring: TT, Tt, Tt, tt
Thus,
The phenotype of offspring (first cross or F1): 100% tall
The genotype of offspring (first cross or F1 - 100% Tt or heterozygous)
The phenotype of offspring in F2 (F1 × F1) - 3:1 (3 tall: 1 dwarf)
The genotype of offspring in F2 (F1 × F1) - 1:2:1 (One dominant tall: two heterozygous tall: one dwarf)
how sponges are successful?
What is a subduction zone and a transform boundary?
a transform fault or transform boundary is a fault along a plate boundary where the motion is predominantly horizontal. it ends abruptly where it connects to another plate boundary, either another transform, a spreading ridge, or a subduction zone.
You are trying to find which wavelength of light would allow algae to do photosynthesis the worst (you want to prevent algal growth in your pond). Describe your experiment setup:
hypothesis (1 point)
independent variable (1 point - you can choose anything)
dependent variable (1 point) and how you will measure the dependent variable (1 point)
variables you will keep constant (1 point)
Answer:
The light reactions of many algae differ from those of land plants because some of them use different pigments to harvest light. Chlorophylls absorb primarily blue and red light, whereas carotenoids absorb primarily blue and green light, and phycobiliproteins absorb primarily blue or red light. Since the amount of light absorbed depends upon the pigment composition and concentration found in the alga, some algae absorb more light at a given wavelength, and therefore, potentially, those algae can convert more light energy of that wavelength to chemical energy via photosynthesis. All algae use chlorophyll a to collect photosynthetically active light. Green algae and euglenophytes also use chlorophyll b. In addition to chlorophyll a, the remaining algae also use various combinations of other chlorophylls, chlorophyllides, carotenoids, and phycobiliproteins to collect additional light from wavelengths of the spectrum not absorbed by chlorophyll a or b. The chromophyte algae, dinoflagellates, cryptomonads (class Cryptophyceae), and the class Micromonadophyceae, for example, also use chlorophyllides. (Chlorophyllides, often incorrectly called chlorophylls, differ from true chlorophylls in that they lack the long, fat-soluble phytol tail that is characteristic of chlorophylls.) Some green algae use carotenoids for harvesting photosynthetically active light, but the Dinophyceae and chromophyte algae almost always use carotenoids. Phycobiliproteins, which appear either blue (phycocyanins) or red (phycoerythrins), are found in red algae and cryptomonads.
Explanation:
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The poles of a solenoid can be reversed by
what is the speed of a car that travels 485 meters in 15 seconds
A chest radiograph of an asymptomatic 37-year-old man showed a 3-cm nodule in the middle lobe of the right lung. The nodule was excised with a pulmonary wedge resection, and sectioning showed the nodule to be sharply circumscribed with a soft, white center. Culture of tissue from the nodule grew Mycobacterium tuberculosis. Which of the following pathologic processes has most likely occurred in this nodule? a. lipid acummulation b. liqufactive necrosis c. caseous necrosis d. coagulative necrosis e. gangreous necrosis f. apoptosis g. apoptosis h. fat necrosis
Answer:
caseous necrosis
Explanation:
The pathologic process that most likely occurred to this nodule would be caseous necrosis. This occurs at the time of death of a some cells but it is a very unique scenario in which the cell maintains a soft and white proteinaceous dead cell mass, just like in this scenario. This type of cell death usually occurs in lymph nodes but can occur in any cell in the body including in the lung.
Number 8. was colorblind just like his father: Where did the son at 8 get his allele for colorblindness?
Answer:
son 8 inherited it from her.
Explanation:
Given that Son 8's mother is a carrier of the blindness allele
Assuming that the father is colorblind due to a genetic mutation, there are a few possible scenarios for how the son inherited the allele for colorblindness.
What is genetic inheritance?Genetic inheritance is the study of how certain inherited traits are passed down from generation to generation.
Assuming the father is colorblind due to a genetic mutation, there are a few possibilities for how the son inherited the colorblind allele:
His father's colorblindness allele was passed down to his son. The son in this case inherited the mutation from his father.The mother carries the colorblindness allele, which she passed on to her son. In this case, the son inherited the mutation from his mother, who is not colorblind but carries the gene.The colorblindness mutation is present in both the mother and father, and the son received one copy from each parent. This is a less likely scenario, but it is possible if both parents carry the gene.Thus, in any of these scenarios, the son inherited the allele for colorblindness from one or both of his parents.
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How can you describe a cell
Answer:
A cell is a mass of cytoplasm that is bound externally by a cell membrane. Usually microscopic in size, cells are the smallest structural units of living matter and compose all living things. Most cells have one or more nuclei and other organelles that carry out a variety of tasks.
Explanation:
How are astronomers able to determine what elements are found in other stars and galaxies?
Answer:
This type of study is called spectroscopy. The science of spectroscopy is quite sophisticated. From spectral lines astronomers can determine not only the element, but the temperature and density of that element in the star. The spectral line also can tell us about any magnetic field of the star.
Explanation: