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konstantin123 [22]
4 years ago
14

Imagine an island archipelago where all of the islands are founded by individuals that are heterozygous at a particular locus. I

f there is no migration or mutation, and the alleles at that locus are neutral, what do you expect the island populations to look like after many generations?
a) Some island populations will have fixed one allele, and other populations will have fixed the other allele.
b) The populations on every island will have fixed the same allele.
c) The island populations will have high levels of genetic diversity at this locus.
d) We cannot assess the probability of any outcome because genetic drift is a random process.
Biology
1 answer:
jarptica [38.1K]4 years ago
8 0

Answer:

a) Some island populations will have fixed one allele, and other populations will have fixed the other allele.

Explanation:

The founder population for each island is heterozygous for the locus. The absence of any migration and mutation would result in no gene flow or the introduction of new alleles of the locus. Over several generations, one or the other allele will be fixed in the populations depending on the adaptive features imparted by each under the different conditions present on these different islands. Genetic drift may also work on these small founder populations to randomly fix one or the other allele.

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jolli1 [7]
Answer: Because the cell will expand and burst

When a cell is frozen, that means the cell temperature is going to be lowered extremely. Ice has more volume than water which is why it floating inside water. That's why if you put water in a plastic container then freeze it, the container will get pressured and swollen. If the container is not elastic enough(metal, glass), it will burst. 
Same like that, the cell that got frozen can be burst too.

8 0
4 years ago
The atomic mass of arsenic is 75 atomic mass units; a neutral atom of asennic has 33 electrons. how many neutrons does arsenic n
Firdavs [7]

Answer:

42

Explanation:

Atoms have a neutral charge overall, which means they have an equal numbers of positively-charged protons and negatively-charged electrons. Here, an atom of arsenic with 33 electrons must also have 33 protons.

The mass of any atom is contained in its <em>nucleus</em>, a part made up of protons and neutrons - particles with no charge. Both protons and neutrons are exactly 1 atomic mass unit each, so to find the atomic mass of an atom, we can use the formula

(# of protons) + (# of neutrons) = atomic mass

or equivalently:

atomic mass - (# of protons) = (# of neutrons).

For arsenic, we have an atomic mass of 75 amu and 33 protons, so using our formula:

# of neutron = 75 - 33 = 42 neutrons

5 0
3 years ago
Demonstrate through chemical modeling what happens to the protein structure (keratin) of curly hair after a chemical relaxer and
NeX [460]

Answer:

Denaturation occurs.

Explanation:

When a chemical relaxer and heat applied to a curly hair, the protein present inside your hair get denature. Due to this denaturation of protein in the hair, the hair are soft and flexible which can be converted into any direction and different styles can be done. If chemical perm or relaxer is applied to straight hairs, it also denature the protein and make the hair curly.

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3 years ago
Unlike third-world and developing nations, the u.s. has no incidence of hungry or malnourished people. true false
Ksju [112]
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4 0
3 years ago
Imagine you are studying a population of plants and you have determined that they are all genetic clones of one another. You are
maksim [4K]

Answer:

The frequency of the allele is  high in  the  population

Explanation:

The selective pressure in this population is low light. <u>Thus only plants with high tolerance for low light will be able to survive in this population. LLT gene plant has this trait</u>.

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