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svetoff [14.1K]
3 years ago
9

In what part of the world is the mutation for lactose tolerance most concentrated?

Biology
1 answer:
lutik1710 [3]3 years ago
4 0

Asia. In certain regions the diagnosis is as high as 95% of the population.

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A recessive allele causes phenylketonuria (PKU) when homozygote. If the frequency of the recessive allele is 0.05 in the populat
Radda [10]

Answer:

0.095

Explanation:

Phenylkentonuria is a disease caused by a recessive allele.

The frequency of the recessive allele + the frequency of the dominant allele equals 1.

The frequency of the recessive allele is q = 0.05

The frequency of the dominant allele then is p = 1  - q = 0.95

If people mate randomly, the frequency of the homozygous dominant genotype will be p², the frequency of the heterozygous genotype will be 2pq and the frequency of the homozygous recessive genotype will be q² .

2pq=2× 0.05 × 0.95

2pq=0.095

The heterozygote frequency in the population is 0.095

4 0
3 years ago
Ben Affleck has a cleft chin, but his ex-wife Jennifer Garner does not. Neither one of their two daughters (Violet and Seraphina
kherson [118]

Answer:

Ben - Y Xc

Jen - XCXC

Violet - XCXc

Seraphina - XCXc

Samuel- Y Xc

Explanation:

Given -

Ben has a cleft chin

Let the allele for cleft chin be "c"

and the allele for normal chin be "C"

When Ben with cleft chin mates with wife Jennifer Garner having normal chin, then the two girl child do not have cleft chin but the boy has cleft chin.

This means that the allele C could be X -linked and the mother is not the carrier but the father is

The genotype of father Ben would be Y Xc

Genotype of mother would be XCXC

Genotype of two daughters XCXc  , XCXc which means they are carrier for the next generation

Genotype of Boy - Y Xc

3 0
3 years ago
Which factors affect the temperature of a region? Check all that apply.
kogti [31]

The factors that affect temperature or altitude latitude and distance from sea the height measured from sea level is called altitude when the latitude increases the distance from the Sun Also increases so the temperature gradually decreases

5 0
3 years ago
Read 2 more answers
In which region of the Sun does energy move through circulating currents of gases? photosphere corona core radiative zone chromo
Tresset [83]
Convective zone is the answer. If you need an explanation just ask.
Hope this helps :)
5 0
3 years ago
Read 2 more answers
What facts about DNA does the Watson-Crick model explain?
Luba_88 [7]

Answer:

I think it explains that the DNA molecules are double helix with alenine and thymine paired together

3 0
3 years ago
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