Biology Chapter 12 EOC Intro to Genetics

Mendel was a careful researcher who studied the inheritance of certain traits in garden peas. Which research practices did Mendel use? Choose all that apply:

• He crossed true-breeding pea plants.

• He allowed eggs to be fertilized only by self-pollination.

• He analyzed his data mathematically.

• He controlled variables by studying one or two traits at a time.

T - tall and t = short

In the punnett square below, what belongs in the missing square

• tt

• Tt

• Bb

• TT

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What are the possible genotypes for this cross?

• TT=25% Tt=50% tt=25%

• All will be tall

• Tt=100%

• TT=75% tt=25%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Based on the completed Punnett square, what is the phenotypic Ratio?

• 1:2:1

• 3:2

• 3:1

• 1:3:1

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

Which of the following genotypes is homozygous dominant?

• A

• Aa

• AA

• aa

Tags

NGSS.HS-LS3-1

Each one of the boxes on the Punnett Square represents what probability of an offspring's' genotype?

• 25%

• 1%

• 10%

• 0%

Tags

NGSS.HS-LS3-3

In this example, the child displays the ________ trait.

• dominant

• recessive

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

How many alleles (letters) do each person carry for a trait?

• 1

• 2

• 3

• 4

Tags

NGSS.HS-LS3-1

Aa, DD, Bb, yy are all examples of

• genotypes

• phenotypes

Which of the following genotypes is heterozygous?

• Bb

• BB

• bb

• B