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wlad13 [49]
3 years ago
12

What causes gene flow​

Biology
2 answers:
Luda [366]3 years ago
8 0

Either population of organism with different traits coming in or out

serg [7]3 years ago
7 0

Answer:

Gene flow or allele flow is the transfer of genes or genetic variation among populations.

This gene flow or migration of genes help maintain the similarities between the species or genetic diversity in a population but slows the process of speciation and variation in the population.

The causes of gene flow are:

1. Random mating- random mating among organisms of different population causes movement of alleles in populations.

3. Recombination of chromosomes during meiosis- can change the alleles of the organism.

2. Mutation- mutation in DNA can create new alleles in a population.

4. Random fertilization.

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Ganezh [65]

0:3:1

Explanation:

Tasters have the dominant allele for the itter taste of PTC, they can be homozygous TT and heterozygous Tt.

Non-tasters are supposed as autosomal recessive characters

they are homozygous recessive tt when expressed

Given in the equation two heterozygotes parents would produce offspring with the trait in the following ratio.

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t    Tt     tt

The phenotypic character is in the ratio of 0:3:1

There will be 25% chances of recessive trait of non-tasters in the progeny of heterozygous parents.

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Answer:

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Explanation:

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1. behavior is inherited and programmed in the genetic code.
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