Genetics and Inheritance Patterns

The video tutorial covers the basics of genetic inheritance using guinea pigs as an example. It explains how to establish genotypes and use Punnett squares to predict offspring traits. The tutorial also delves into the genetics of color blindness and hemophilia, highlighting how these conditions are inherited and why they are more common in males.

What is the genotype of a gray female guinea pig?

• Homozygous recessive

• Heterozygous

• None of the above

• Homozygous dominant

In the context of guinea pigs, what does a capital 'B' allele represent?

• Brown color

• Black color

• Gray color

• White color

What is the probability of having a colorblind male child if the mother is colorblind and the father is normal?

• 50%

• 100%

• 25%

• 0%

If both parents are colorblind, what is the likelihood of their children being colorblind?

• 100%

• 25%

• 50%

• 75%

What is the genotypic ratio for offspring when a normal male marries a carrier female?

• 2:1:1

• 3:1

• 1:2:1

• 1:1:1:1

What percentage of children will be normal females if a normal male marries a carrier female?

• 100%

• 75%

• 25%

• 50%

What is the dominant allele for hemophilia?

• Big H

• Little h

• Big B

• Little b

Which parent must carry the hemophilia gene for a child to potentially have the disorder?

• Neither parent

• Both parents

• Only the father

• Only the mother

Why is hemophilia more common in males?

• Males have no X chromosomes

• Males have two Y chromosomes

• Males have only one X chromosome

• Males have two X chromosomes

What is the phenotype of a female carrier of hemophilia?

• Normal

• Hemophiliac

• Albino

• Colorblind