In the S phase of meiotic interphase, each chromosome replicates, producing two copies of each allele, one on each chromatid, the homologous chromosomes segregation takes place in__

Which of the following statements is correct about the segregation of chromosomes?

a.If no crossing over has taken place, the two chromatids of each chromosome segregate in anaphase II and are identical

b. If crossing over has taken place, the two chromatids are no longer identical, and the different alleles segregate in anaphase II

c. If no crossing over has taken place, the two chromatids of each chromosome segregate in anaphase I and are identical

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#Question id: 23729

#Unit 8. Inheritance Biology

Meristic characteristics___

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#Question id: 23730

#Unit 8. Inheritance Biology

The susceptibility exceeds a threshold value, the characteristic is expressed is,

 

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#Question id: 23731

#Unit 8. Inheritance Biology

Which one of the following statements is INCORRECT?

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#Question id: 23732

#Unit 8. Inheritance Biology

According to this figure, which of the following statements is correct;

                 

a) The genotype affects plant weight, but the environmental conditions determine which genotype produces the heavier plant.

b) The environmental conditions affects plant weight, but the alleles determine which type of genotype produces the heavier plant.

c) It shows the Genetic–environmental interaction variance

d) It shows only environmental variance (Ve)

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#Question id: 23733

#Unit 8. Inheritance Biology

Phenotypic variation is analyzed for milk production in a herd of dairy cattle and the following variance components are obtained: Additive genetic variance= 0.4, Dominance genetic variance= 0.1, Genic interaction variance= 0.2, Environmental variance= 0.5, Genetic−environmental interaction variance= 0.0,  the heritability (H2) of milk production is___

TLS Online TPP Program

#Question id: 23734

#Unit 8. Inheritance Biology

The narrow-sense heritability of ear length in Reno rabbits is 0.4. The phenotypic variance (VP) is 0.8, and the environmental variance (VE) is 0.2. What is the additive genetic variance (VA) for ear length in these rabbits?