mendelian genetics

A HETEROZYGOUS individual would have the genotype:

• Hh

• hh

• HH

• Hi

In pea plants, tall (T) plant alleles are dominant to short (t) plant alleles. If two tall plants (each with the genotype Tt) are crossed, what is the probability that the cross would result in a short pea plant?

• 25%

• 50%

• 75%

• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

The letters on the TOP AND SIDE of a punnett square represent ______________.

• The combination of alleles in offspring.
• The possible alleles given by the parents following meiosis.
• The genotype and phenotype of offspring.
• The results of genetic mutations in offspring.

Tags

NGSS.HS-LS3-1

If your genotype is Bb, then you can only pass a B or b to your child but you can't pass both.

• Law of Dominance

• Law of Segregation

• Law of Independent Assortment

A recessive allele is only expressed when a dominant allele is not present

• Law of dominance

• Law of inheritance

Different traits are inherited independently of each other

• Law of independent assortment

• Genetics law

In pea plants, the trait for tall stems is dominant over the trait for short stems. If two heterozygous tall plants are crossed, what percentage of the offspring would be expected to have the same phenotype as the parents?

• 100%
• 75%
• 50%
• 25%

Tags

NGSS.HS-LS3-2

NGSS.HS-LS3-3

Based off this punnett square, what fraction of the offspring will have wrinkled, yellow seeds?

• 9/16

• 3/16

• 1/16

• 16/16

What goes in box 15

• aabb

• AABB

• aaBB

• AAbb

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Cross Two Homozygous plants
(RRYY x rryy)
R = round seeds, r  = wrinkled seeds Y = yellow seeds, y = green seeds
What percent will have Round and Yellow seeds? 

• 0%
• 25%
• 50%
• 100%

Tags

NGSS.HS-LS3-3