Genetics Part 2 PRODUCT Quiz

This term refers to the production of gametes by organisms that reproduce sexually

• mitosis

• binary fission

• meiosis

• cloning

The exchange of genetic information that insures that every gamete is unique is referred to as

• mitosis

• meiosis

• reduction division

• crossing over

What are small stretches of DNA that code for traits

• Nucleus
• Chromosomes
• Gene
• Centromeres

What are the phenotype percentages of the offspring?

(A-Brown fur color; a-white fur color)

• 50 % Brown fur and 50% White fur

• 25 % Brown fur and 75% White fur

• 75 % Brown fur and 25% White fur

• 0% Brown fur and 100% White fur

In humans, having freckles (F) is dominant to not having freckles (f). What is the percent chance that a married couple with no freckles will give birth to a child who has freckles?

• 0%

• 25%

• 50%

• 75%

• 100%

Match the following

• Heterozygous

• Bb

• Homozygous Dominant

• bb

• Homozygous Recessive

• BB

Which of the following is related to GENOTYPE? Choose ALL that apply

• Physical Traits

• Bb

• Homozygous

• Blue Eyes

• What alleles the person has

Which of the following is related to PHENOTYPE? Choose ALL that apply

• Physical Traits

• Bb

• Homozygous

• Blue Eyes

• What alleles the person has

Match the following

• Genotype

• A version of a gene

• Phenotype

• Section of DNA that codes for a trait

• Gene

• What physical trait a person has

• Allele

• What alleles a person has

Why do genotypes always have two letters?

• Because you get one allele from each parent, meaning two in total

• Because both a dominant and a recessive allele are needed for a trait

• Because it is easier to see what type of trait it is using two letters

• Because you get two alleles from each parent for each trait

Answer explanation

Alleles are found on chromosomes, and you have 23 pairs of chromosomes. Of each pair of chromosomes you got one from your mom and one from your dad. So you get one allele for a trait from your mom and one allele for a trait from your dad.