Biology, Thursday Exit Ticket, 1.17.19

Alternative forms of a gene are called

• Alleles
• Homozygous
• DNA
• Genetics

The physical appearance of an organism based on traits

• Genotype
• Phenotype
• Meiosis
• Genetics

The allele combinations

• genetics
• mitosis
• genotype
• phenotype

This trait will always be expressed if present because it will mask the expression of others

• stem cells
• heterozygous
• dominant
• recessive

Hair colour is an example of

• genotype
• phenotype

Having the genes for baldness is an example of

• genotype
• phenotype

How tall you are is an example of

• genotype
• phenotype

RR- round
rr-wrinkled
What is the genotype for wrinkled?

• RR
• rr
• Rr

A partial Punnett square is shown in the image.

Given the offspring in the Punnett Square, what is the most likely genotype of the parents?

• Both parents are heterozygous.

• Both parents are homozygous dominant.

• One parent is homozygous recessive and the other parent is heterozygous.

• One parent is homozygous dominant and the other parent is heterozygous.

Which of the following is homozygous dominant?

• Yy
• Y
• yy
• YY