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Define the following terms. Drag the terms on the left to the appropriate blanks on the...

Define the following terms.

Drag the terms on the left to the appropriate blanks on the right to complete the sentences.

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  • heritability
  • QTL
  • monozygotic twins
  • correlation
  • polygenes
  • additive alleles
  • dizygotic twins
  • 1.   is a statistic that varies from -1 to +1 and describes the extent to which variation in one trait is associated with variation in another.
  • 2.   is a measure of the degree to which the phenotypic variation of a given trait is due to genetic factors.
  • 3.   are situations in which multiple genes contribute to a quantitative trait.
  • 4.   arise from a single fertilized egg and are thus genetically identical.
  • 5.   arise from two eggs fertilized by two different sperm cells.
  • 6.   are involved in determining continuously varying or multiple factor traits.
  • 7.   account for the hereditary influence on the phenotype in an additive way.

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Answer 1) correlation is a statistic that varies from -1 to +1 and describes the extent to which variation in one trait is associated with variation in another.

Correlationis the degree of association between 2 or more variables.

Answer 2) heritability is a measure of the degree to which the phenotypic variation of a given trait is due to genetic factors.

Heritability is actually the quality of being heritable. It also affects the rate of evolution.


Answer 3) QTL are situations in which multiple genes contribute to a quantitative trait.

In QTL many gene and environment measures the phenotype. Example height, weight and blood pressure.


Answer 4) monozygotic twins arise from a single fertilized egg and are thus genetically identical.

Monozygotic twins develops from one zygote.


Answer 5) dizygotic twins arise from two eggs fertilized by two different sperm cells.

Dizygotic twins develops from fertilization of two eggs.


Answer 6) polygenes are involved in determining continuously varying or multiple factor traits.

Polygenes are group of genes expressing together to produce a trait.


Answer 7) additive alleles account for the hereditary influence on the phenotype in an additive way.

Additive alleles contribute to those traits that can be seen such as height, weight etc.

Hope you got the answer you were looking for. Please do the thumbs up. Thanks in advance. Have a great day ahead.

gladiator answered 2 years ago
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