Question

The polygene hypothesis is a model that: Group of answer choices a.Makes use of Mendelian predictions...

The polygene hypothesis is a model that:

Group of answer choices

a.Makes use of Mendelian predictions to explain discontinuous traits

b.Rejects Mendelian predictions to explain discontinuous traits

c.Makes use of Mendelian predictions to explain continuous traits

d.Rejects Mendelian predictions to explain continuous traits

2.

For a continuous trait, the heritability in a population is a measure of:

Group of answer choices

a.Only the genetic variance in a population

b.Only the phenotypic variance in a population

c.The proportion of phenotypic variance that is caused by genetic variance

d.The proportion of genetic variance that is caused by phenotypic variance

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Answer #1

Q-The polygene hypothesis is a model that :

Answer- Rejects Mandelian predictions to to explain continuous traits. Polygenic traits are result of interaction of many genes. This would result into a continuous range of phenotypic traits in the offspring. It rejects the Mandelian prediction of discrete traits.

Q-For a conitnuous trait , heritability in a population is a measure of :

Answer- The proportion of pehnotypic variance that is caused by genetic variance. Heritability increases when the gentic cause is contributing more and non-genetic cause is contributing less. It decreases when genetic cause is contributing less and non-genetic cause like environment is contributing more.

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