Introduction to Heredity Video Questions

Introduction to Heredity Video Questions:

Video:                   “Monohybrids and the Punnett Square Guinea Pigs”

By:                          Amoeba Sisters

Youtube:             https://www.youtube.com/watch?v=i-0rSv6oxSY

 

1.       Guinea pigs obtain their genes from                                       .

2.       What is the definition of an allele?

3.       Alleles are represented by                                          .

4.       How many alleles do you have per gene? (THIS IS NOT IN THE VIDEO. THINK!!!)

5.       Hairless guinea pigs have how many alleles for the gene, Hair?

6.       What is the genotype of the hairless guinea pigs?

7.       When do recessive alleles show up?

8.       A dominant allele is represented by                                        .

9.       What is the definition of genotype?

10.   What are the 2 possible genotypes for guinea pig without hair?

11.   How many alleles are necessary for a dominant trait to show up?

12.   Provide 2 homozygous genotypes.

13.   Provide 1 example of heterozygous genotype

14.   What is a monohybrid cross?

15. Two heterozygous guinea pigs for hair are crossed:

a.       What are the genotypes of the parents?

b. Show the cross below.

 

 c.       Provide the percent genotype for offspring.

Genotype:	Percent:

 

d.      Provide the ratio of genotypes for the offspring

Genotype:	Ratio:

 e.      Provide the percent phenotype for offspring

Phenotype:	Percent:

 f.        Provide the ratio of phenotype for offspring

Genotype:	Ratio: