Monohybrid Practice

the genetic makeup of an organism

• heterozygous
• punnet square
• genotype

Genotype refers to the ...

• physical expression of the genes
• the possible combination of alleles in a gene
• whether an allele is dominant or recessive
• how an organism will appear

A homozygous dominant dog with brown fur is crossed with a heterozygous dog with brown fur. What are the percentages of the possible genotypes?

• 100% BB
• 75% BB and 25%Bb
• 50 % BB and 50% Bb
• 50% Bb and 50% bb

having two of the same genes for the trait (sometimes called purebred).

• homozygous
• hetrozygous
• protein
• chromosome

Tags

NGSS.HS-LS3-1

G = green, g = yellow
The genotype for a yellow plant is...

• GG
• Gg
• gg
• all of the choices result in yellow

Tags

NGSS.MS-LS3-2

An allele whose trait only shows up when no dominant allele is present.

• hidden allele
• dominant allele
• recessive allele
• present allele

How many alleles do we get from each parent for each trait?

• one
• two
• three
• four

Tags

NGSS.MS-LS3-2

What are the possible genotypes for this cross: Tt x Tt

• TT = 25% Tt= 50% tt=25%

• all tall

• TT= 75% tt = 25%

• Tt = 100%

Which of the following is a phenotype?

• Aa
• red hair
• heterozygous
• BB

Tags

NGSS.MS-LS4-4

An organism's genetic make-up:

• phenotype
• genotype
• dominant
• recessive

Tags

NGSS.MS-LS3-2