Principles of Genetics: Law of Dominance
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Questions and Answers

According to the First Law of Inheritance, characters are controlled by continuous units called factors.

False

The Law of Dominance explains the expression of both parental characters in the F2 generation.

False

According to the Law of Segregation, alleles show blending in the F2 generation.

False

Homozygous parents produce gametes that are all different.

<p>False</p> Signup and view all the answers

Incomplete dominance refers to when the F1 generation phenotype resembles one of the two parents.

<p>False</p> Signup and view all the answers

Mendel's test cross involves crossing a homozygous individual with an unknown genotype with a homozygous recessive individual.

<p>True</p> Signup and view all the answers

Pedigree analysis is a tool used in human genetics to trace the inheritance of traits over generations.

<p>True</p> Signup and view all the answers

In pedigree analysis, inheritance of a specific trait is not represented in the family tree.

<p>False</p> Signup and view all the answers

DNA carries genetic information and remains unchanged as it is passed from one generation to the next.

<p>True</p> Signup and view all the answers

Mendel's test cross is used to determine the genotype of an individual with a dominant phenotype.

<p>True</p> Signup and view all the answers

Mutation is a term used to describe changes or alterations in genetic material.

<p>True</p> Signup and view all the answers

Genotypic ratios are not related to the study of phenotypic traits and inheritance patterns.

<p>False</p> Signup and view all the answers

Individuals with Klinefelter's Syndrome have a karyotype of 47, XXY.

<p>True</p> Signup and view all the answers

Individuals with Turner's Syndrome have a karyotype of 45 with XXY.

<p>False</p> Signup and view all the answers

Mendel was the first biologist to systematically study the pattern of inheritance.

<p>True</p> Signup and view all the answers

According to Mendel, factors regulating the characters are found in triplets known as alleles.

<p>False</p> Signup and view all the answers

In the Punnett square, the offspring's genotypic ratios can be predicted based on the parents' genotypes.

<p>True</p> Signup and view all the answers

Phenotypic traits are always determined solely by dominant alleles.

<p>False</p> Signup and view all the answers

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