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zmey [24]
3 years ago
15

After graduation, you and 19 friends build a raft, sail to a deserted island, and start a new population, totally isolated from

the world. Two of your friends carry (that is, are heterozygous for) the recessive cf allele, which in homozygotes causes cystic fibrosis. Assuming that the frequency of this allele does not change (your population is at HWE) as the population grows, what will be the instance of cystic fibrosis on your island once the population grows large?
Biology
1 answer:
Softa [21]3 years ago
6 0

Answer:

Incidence of cystic fibrosis on the island= 0.0025

Explanation:

According to the given information, the population is in Hardy Weinberg equilibrium which means that the allele frequencies would be maintained over generations.  

Given that total population size is = 20

Total number of alleles = 20 x 2 = 40 (since human are diploid, each individual has two alleles for one gene).  

Out of total 19 people, only two are heterozygous for cystic fibrosis which means that out of total 40 alleles, the number of recessive allele for cystic fibrosis is = 2

Frequency of recessive allele (q)= 2/ 40 = 0.05

Frequency of cystic fibrosis genotype (q^2) = 0.05 x 0.05 = 0.0025

Therefore, incidence of cystic fibrosis on the island would be = 0.0025

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Answer: False

Explanation:

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The extent to which the organ can help in preserving normal function despite the fact that there's a reduction in the number or cell activity is referred to as compression of morbidity.

When morbidity is compressed, it should be noted that individuals can be expected to live healthier and longer as well.

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6 0
3 years ago
Meiosis is a process that produces gametes. Using the diagram, what do you notice about the cells produced in meiosis?
Verizon [17]

Answer:

<u><em>The correct option is C) Meiosis produces 4 daughter cells each with half the number of  chromosomes of the original cell.</em></u>

Explanation:

There are two main processes by which cell divides:

1) Mitosis

2) Meiosis

All the cells of the body divide by the process of mitosis except the sex cells.<em> Sex cells divide by the process of meiosis.</em>

Meiosis can e described as a type of cell division in which four daughter cells are formed each having half the number of chromosomes as the parent cell. This is because the cell has to attain half of the maternal and half of the paternal chromosomes at the time of fertilization.

Crossing over and independent assortment are the phenomenon of meiosis which bring genetic diversity among parent and children.

4 0
3 years ago
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Explanation:

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3 0
3 years ago
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Answer:

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