Answer:
Only the mother has two X chromosomes. The father is male, so he only had one X chromosome but the calico cat has a genotype of XXY. Only nondisjunction could cause Calix to have an XXY karyotype.
Explanation:
Answer:
Cats with these combinations appear: white with orange spots, white with black and orange spots (calico), and white with black spots, respectively. The actual genetic composition is called the genotype, and the expression of the genes is the phenotype. Thus, calico is the phenotype for a cat with the genotype.
Explanation:
What do all members of the swine species always have in common? They always have the same number and kinds of chromosomes. They are always preyed upon by the same predators. They always occupy the same habitat at the same time. They always occupy the same position in the food web no matter where they live.
Answer:
Members of the swine species always have the same number and kinds of chromosomes
Explanation:
The swine species always have their food habits in common. They are omnivorous and they also due to ancestry have the typical type of genes and chromosomes inscribed in it. Hence swine are used in research industry nowadays like dogs and monkeys.
Wild boars, hogs and pigs all have just small differences externally. Their anatomy and physiology are identical. They are all mammals. They are highly intelligent and talented ones. They have their physiology identical to ours which helps in research scientist to experiment and finds cure for human.
Answer:
biological definition of species, which works for sexually reproducing organisms, is a group of actual or potential interbreeding individuals. There are exceptions to this rule. Many species are similar enough that hybrid offspring are possible and may often occur in nature, but for the majority of species this rule generally holds. The presence in nature of hybrids between similar species suggests that they may have descended from a single interbreeding species, and the speciation process may not yet be completed.
Given the extraordinary diversity of life on the planet there must be mechanisms for speciation: the formation of two species from one original species. Darwin envisioned this process as a branching event and diagrammed the process in the only illustration found in On the Origin of Species (Figure 1a). Compare this illustration to the diagram of elephant evolution (Figure 1b), which shows that as one species changes over time, it branches to form more than one new species, repeatedly, as long as the population survives or until the organism becomes extinct.
Explanation:
For speciation to occur, two new populations must be formed from one original population and they must evolve in such a way that it becomes impossible for individuals from the two new populations to interbreed. Biologists have proposed mechanisms by which this could occur that fall into two broad categories. Allopatric speciation (allo– = “other”; –patric = “homeland”) involves geographic separation of populations from a parent species and subsequent evolution. Sympatric speciation (sym– = “same”; –patric = “homeland”) involves speciation occurring within a parent species remaining in one location.
Biologists think of speciation events as the splitting of one ancestral species into two descendant species. There is no reason why more than two species might not form at one time except that it is less likely and we can conceptualize multiple events as single splits occurring close in time.
Allopatric Speciation
A geographically continuous population has a gene pool that is relatively homogeneous. Gene flow, the movement of alleles across a species’ range, is relatively free because individuals can move and then mate with individuals in their new location. Thus, an allele’s frequency at one end of a distribution will be similar to the allele’s frequency at the other end. When populations become geographically discontinuous, it prevents alleles’ free-flow. When that separation lasts for a period of time, the two populations are able to evolve along different trajectories. Thus, their allele frequencies at numerous genetic loci gradually become increasingly different as new alleles independently arise by mutation in each population. Typically, environmental conditions, such as climate, resources, predators, and competitors for the two populations will differ causing natural selection to favor divergent adaptations in each group.
Are there concerns about the use of GMOs? If so, what are these concerns?
Answer:
It is known that the main concerns about adverse effects of GM foods on health are the transfer of antibiotic resistance, toxicity and allergenicity. There are two issues from an allergic standpoint.
Explanation:
hope this helps :)
What will the Government and Education be like on your colony?
2.2
Study the diagram of enzyme action and answer the questions that follow.
2.2.1 Provide labels for the parts N, O and P.
2.2.2 What property of enzymes is illustrated in the above diagram?
2.2.3
List TWO properties of enzymes other than the one mentioned in
QUESTION 2.2.2.
Answer:
2.2.1 O is the enzyme and N is the ligand.
2.2.2 In the figure, the enzyme shows lytic activity by generating two products like digestive enzymes.
2.2.3 Enzymes are indispensable for signal transduction and cell regulation, often via kinases and phosphatases. They also generate movement, with myosin hydrolyzing ATP to generate muscle contraction.
The five-carbon sugar in RNA is _____ whereas in DNA it is _____.
Answer:
The answers are Ribose, deoxyribose.
Every known living organism on Earth is classified and named by a set of rules. Those rules are used by all scientists around the planet. The taxonomic way of classifying organisms is based on similarities between different organisms
When classifying organisms, scientists look at many characteristics some of which are the number of cells, coll structure or body form
Refer to the diagram provided. What can you determine by analyzing Cell #1 and Cell 12? (SC.912. L.15.6)
Cell 1
Cell 2
Plus
Mtochondrion
Cel membrane
Free Ribosomes Golgi body
Cel wall
/Nucleolus
Chroma
Capsule
in nucius
(DNA)
Cytoplasm
Flagellum
Ribosomes
200
Nuclear
Centre membrane
os
NE
Nucleod (ONA)
Lysosome ca
Call merband
Rough
endoplasmic
Voice
reticulum
Smooth
endopamie Prosome
Cell 1 has a coll wall, and Cell 2 is eukaryotic
The nucleus is not present in Cell 2 and Coll 1' DNA is enclosed by a membrane
Cell 1 has membrane-bound organelles, Coll 2 has no membrane organelles
Cell 2 is prokaryotic Collis eukaryotic
Answer: A
Explanation:
Cell #1 has a cell wall, and cell #2 is eukaryotic
I got the answer from Quizizz
What are antennae used for?
BIG POINTS IF YOU DO THESE!!!
Answer:
PART 2-
6-Tt
7-Hh
8-Cc
PART 3-
9- widows peak= Pp,PP no widows peak= pp
10- No hitchhikers thumb= Hh, HH hitchhikers thumb= hh
PART 4-
11- look at the green punnet square picture 50% are round
12- and I don't know this one sorry :(
Explanation:
hope this helps
HELPPP ASAP !! how are different natural disasters related? what different causes and effects do you know about?
In the year 2500, five male space colonists and five female space colonists (all unrelated to each other) settle on an uninhabited Earthlike planet in the Andromeda galaxy. The colonists and their offspring randomly mate for generations. All ten of the original colonists had free earlobes, and two were heterozygous for that trait. The allele for free earlobes is dominant to the allele for attached earlobes. If one assumes that Hardy-Weinberg equilibrium applies to the population of colonists on this planet, about how many people will have attached earlobes when the planet's population reaches 10,000
Answer:
100 individuals will have attached earlobes out of a population of 10000
Explanation:
From the Hardy-Weinberg equilibrium; p² + 2pq + q². Also, p + q = 1
p² = population of individuals breeding true for free earlobes
2pq = population of individuals heterozygous for free earlobes
q² = population of individuals breeding true for attached earlobes
p = frequency of dominant allele
q = frequency of recessive allele
The dominant trait is free earlobes while the recessive trait is attached earlobes.
Eight out of ten are breed-true for free earlobes, whereas, two were heterozygous for that trait.
p² = 8/10 = 0.8
p = 0.89 or approximately 0.9
q = 1 - p
q = 1 - 0.9
q = 0.1
q² = (0.1)²
q² = 0.01
For a population of 10000 persons, number of people with attached earlobes will be:
0.01 * 10000 = 100 persons
Therefore, 100 individuals will have attached earlobes out of a population of 10000
Help ASAP 10 points.
Answer:
below
Explanation:
11. A
12. C (i believe)
13. A
14. B
Answer:
it's C I believe it just looks convincing if it's wrong sorry (◞‸◟ㆀ)
Explanation:
convincing
can i have some help on this
Answer:
Directional selection.
fossils are taken as the strongest evidence so far regarding the evolution of organisms. justify this statement
Answer:
No present empirical evidence supports the idea of that natural causes can result in an increase of complexity. The idea that descent with modification has happened in the past is supported by the fossil record. This makes the fossil record the strongest evidence for Darwin's theory of evolution
Explanation:
Fossils are defined as the preserved remains or traces of animals, plants, and other organisms from the past that are important evidence for evolution because they show that life on Earth was different from what was once found on Earth.
What are Fossils?A fossil is defined as the preserved remains, impression, or trace of a once-living thing from a past geological age, including bones, shells, exoskeletons, fossilized traces of animals or microbes, amber, hair, petrified wood, and DNA.
The totality of fossils is known as the fossil record. These are the preserved remains of plants and animals whose bodies were buried in sediments such as sand and mud at the bottom of ancient seas, lakes and rivers, including any preserved traces of life which are usually over 10 000 years old.
The different types of fossils include:
1. Petrified fossils
2. Mold and cast fossils
3. Carbon film fossils
4. Trace fossils
5. Reserved remains, etc.
Thus, Fossils are defined as the preserved remains or traces of animals, plants, and other organisms from the past that are important evidence for evolution because they show that life on Earth was different from what was once found on Earth.
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What is the main difference between Passive Diffusion and Active Transport?
A. Active uses protein channels
B. Passive goes from low to high concentration
C. Active always uses energy (ATP)
Answer:
B. Passive goes from low to high concentration
Explanation:
Hope this helps
if you transfer energy into two solid substances, which do you think would melt
first? A substance with stronger molecular attraction OR a substance with weaker
molecular attraction.
Answer:
probably a substance with a stronger molecular attraction
What wave lengths of light do each of the pigments reflect?
Answer:
All photosynthetic organisms have chlorophyll which absorbs violet–blue and reddish orange–red wave lengths chlorophyll reflects a green and yellow–green wavelengths accessory photosynthetic pigments by including chlorophyll beta–caeotene that absorbs energy therefore then the chlorophyll does not absorbs. Most pigments work by absorbing certain wavelengths of lights the other wavelengths are reflected or scattered that which causes you to see those colours the nergy of the light is absorbed to excite the electrons so it no longer able to seen by your eyes
may be this might help u
Can you please help me with both
1. qualities 2. is worth
Need answer quick please thanks
Answer:
They inherited a recessive allele from both their parents
Explanation:
:)
Hey can someone please help will mark brainliest
A mechanical ventilator in a hospital is designed to assist in breathing. It will deliver oxygen-
carbon dioxide balanced air to the patient at a prescribed rate. Why is carbon dioxide included in
this mixture?
of
Select one:
O a. Carbon dioxide stimulates the medulla oblongata in the brain.
O b. Pure oxygen causes the formation of nitrogen bubbles in the blood.
O c. Pure oxygen cannot be absorbed by the lungs unless diluted with other gases.
O d. Carbon dioxide is necessary to reduce the breathing rate of the patient.
Answer:
C
Explanation:
Because pure oxygen cannot be absorbed by the lungs unless diluted or adding extra oxygen to it .
When the nursery at the hospital caught on fire, everybody rushed out with a baby. Unfortunately, after the fire was put out, the babies were in the wrong cribs. Fortunately, the hospital could type all the babies blood types.
Baby#1 was type O
Baby#2 was type B
Baby#3 was type AB.
1. Mr and Mrs jones both had type A blood. Which baby was theirs?
2. Mr and Mrs Williams had types AB and O blood. Which baby was theirs?
3. Mr and Mrs Wilson had types B and A blood. Which baby was theirs?
Answer:
baby #1 goes to family 2
baby #3 goes to family 1
and baby #2 goes to family 3
Explanation:
its simpler then it looks☺
Baby with blood group O belongs to Mr. and Mrs. Jones, baby with blood group B belongs to Mr. and Mrs. Williams, and baby with blood group AB belongs to Mr. and Mrs. Wilson.
What is a blood group?
Blood group or blood type is the classification of the blood cells into different classes on the basis of presence or absence of antibodies and antigens on the membrane of the blood cells.
The alleles which can be formed in case of Mr. and Mrs. Jones are AA or Ai type. These alleles can only result into formation of an offspring with blood group O or A. Similarly, the possible combination of alleles in case of Mr. and Mrs. Williams is AB and ii, these combinations will result into development of offspring with blood group A or B. In case of Mr. and Mrs. Wilson, the possible combinations of alleles are Ai or AA and Bi or BB, which results into formation of offspring with blood group AB.
This can also be represented through punnett square.
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What are the 3 stages of Diffusion?
Answer:
the innovation phase, the market adaptation phase and the market stabilization phase
Explanation:
This type of cell division creates cells with the same number of chromosomes.
O Mitosis
O Meiosis
O Sexual
O Fertilization
he diagram shows fossils buried in layers of rock.
Which conclusion is best supported by the diagram?
Gastropod
Coral
Triobite
Fern
O Trilobites and gastropods are the youngest fossils.
O Crinoids and gastropods have lived during the same
time period.
O Ferns have existed for a longer period of time than
coral.
O Every ammonite fossil is older than the gastropod
Orinoid
Ammonite
fossils.
Answer:
The answer is Crinoids and gastropods have lived during the same
time period.so B on edge
Explanation:
i took the test
Answer:
The answer is B i got 90% on my test but this one was right
Explanation:
(GIVING BRAINLIEST!!)
The temperate zone is located between the
__________ and __________ zones.
Answer:
The temperate zone is located between the North pole and South pole zones.
Explain the structure and function of DNA.
Answer:
"the art of teaching is the art of assisting discovery"
Explanation:
NEED HELP ASAP!!!!!!!!!!!!
Answer:
It's most likely to be D.
Explanation:
Hope this helps.
Which of these is MOST descriptive of a compartmentalized cell?
A population of birds lives on a small island. Another population of the same species lives on the mainland. The distance between the island and the mainland is too great for birds to fly back and forth. Recently, a series of sandbars and tiny islands have formed between the island and the mainland. What is the most likely effect of this?
Answer: An increase in gene flow between the bird populations.
Explanation:
The population of bird species living in the island and other one in mainland are geographically isolated because of the distance between the island and the mainland is large that does not allow birds to fly and cover the entire distance. This is the reason of reproductive isolation and restricts the gene flow between the two populations. But the creation of sandbars and tiny islands between the island and mainland created a way so that island and mainland birds can meet and reproduce. This will allow the increase in the gene flow between the two separated population of bird species.
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A six-inch frog can jump over 100 feet. TRUE or FALSE?
Answer:
False
Explanation:
It depends on what species of frog it is though.
Summarize what causes an earthquake to occur.
Answer:
Tectonic plates moving
Explanation: