Sex-Linked Traits Intro

Sex-Linked Traits Intro

By Alison Tasich

Multiple Choice

What is the difference between homozygous and heterozygous

• homozygous are 2 different alleles and heterozygous are the same alleles

• heterozygous are two different alleles and homozygous are the same alleles

• Heterozygous is always dominant and homozygous is always recessive.

• Homozygous is always dominant and heterozygous is always recessive.

Multiple Choice

What is the difference between genotype and phenotype?

• Genotype is the physical expression and phenotype is the 2 alleles

• Genotype is the 2 alleles and phenotype is the physical expression

• Genotype is the genes and phenotype is which one is dominant

• Genotype is always dominant and phenotype is always recessive.

Multiple Choice

If one parent is bb and the other is BB, what are the possible genotypes of the offspring?

• BB,bb

• BB, Bb

• Bb, bb

• Bb only

Multiple Choice

If one parent is BB for Brown eyes and the other parent is bb is for blue eyes, what color will the offspring's eyes be?

• One Brown eye and one blue

• One dominant blue eye and one Brown

• blue eyes

• Brown eyes

Fill in the Blank

How many chromosome pairs in humans

Fill in the Blank

What is the purpose of the 23rd pair of human chromosomes

Multiple Choice

The male and female chromosomes are _______, respectively.

• Xy, XX

• XX, Xy

• VW, XY

• WX, YZ

Fill in the Blank

Who determines the sex of a child