TLS Online TPP Program

#Question id: 28259


In mammalian eggs cell containing  thick extracellular matrix which analogous to the_____?_____

#Unit 5. Developmental Biology
  1. corona radiata in invertebrates
  2. acrosomal membrane in invertebrates
  3. vitelline envelope in invertebrates
  4. cortical granules in invertebrates
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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?

TLS Online TPP Program

#Question id: 23735

#Unit 8. Inheritance Biology

Phenotypic variation that is due to genetic differences is referred to as heritability. It can be the Broad-sense heritability and Narrow-sense heritability, the Broad-sense heritability which is ranges from 0 to 1. Identify the correct prediction about these ranges?
a) 0 is all of the phenotypic variance results from differences in genotype
b) 0 is all of the phenotypic variance results from environmental variation
c) 1 is all of the phenotypic variance results from differences in genotype
d) 1 is all of the phenotypic variance results from environmental variation

TLS Online TPP Program

#Question id: 26813

#Unit 8. Inheritance Biology

Which one of the following statements is INCORRECT?

TLS Online TPP Program

#Question id: 26814

#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___
1.20

TLS Online TPP Program

#Question id: 5737

#Unit 8. Inheritance Biology

When an organism gains one extra copy of a chromosome but not a complete haploid set, the conditions is known as

TLS Online TPP Program

#Question id: 5738

#Unit 8. Inheritance Biology

It was once thought that the ____ karyotype was related to criminal disposition because it led to aggressive behavior due to excessive "maleness".