Genetics Test

The two or more different versions a gene may have are called:

• alleles

• chromosomes

• mitochondria

This an example of phenotype

• Tt

• Cc

• Brown fur

A cross of a red 4 o’clock plant with a white one produces all pink offspring. This type of inheritance is known as:

• Incomplete dominance

• Codominance

• Simple inheritance

In guinea pigs the gene for black coat color is the dominant gene and the gene for white coat color is the recessive gene.

A guinea pig has a black coat. Which of the following provides the BEST explanation about the guinea pig's parents?

• The guinea pig received a recessive gene for white coat color from one parent and the recessive gene for white coat color from the other parent.

• The guinea pig received a dominant gene for black coat color from one parent and no gene for coat color from the other parent.

• The guinea pig received a dominant gene for black coat color from one parent and a recessive gene from white coat color from the other parent.

Having two of the same alleles for one trait.

• homozygous

• hetrozygous

• chromosome

G = green, g = yellow

The genotype for a yellow plant is...

• GG

• Gg

• gg

Genotype refers to the ...

• physical expression of the genes

• the possible combination of alleles in a gene

• how an organism will look like

Which of the following is a Homozygous Dominant Genotype?

• Yy

• XX

• zz

A section of DNA that codes for a protein and thus for a specific trait is called:

• chromosome

• gene

• RNA

Which of the following is a heterozygous genotype?

• Gg

• UU

• pp

Tags

NGSS.MS-LS3-2