Mendelian Genetics

The physical expression of a genetic trait is called a

• mutation

• genotype

• crossing over

• phenotype

Having two of the same alleles for a trait (sometimes called purebred).

• homozygous

• hetrozygous

• protein

• chromosome

Having two different alleles for a trait (sometimes called hybrid).

• protein

• homozygous

• heterozygous

• genotype

Which of the following genotypes would be considered heterozygous?

• BB
• gg
• Ff
• TT

Which of the following genotypes is homozygous recessive?

• Tt

• tt

• TT

• T

What allele combination should go in the missing box?

• AA
• Aa
• aa
• none of these

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What are the phenotype percentages of the offspring?

(A-Brown fur color; a-white fur color)

• 50 % Brown fur and 50% White fur

• 25 % Brown fur and 75% White fur

• 75 % Brown fur and 25% White fur

• 0% Brown fur and 100% White fur

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Objective #5

(B-brown eyes & b-blue eyes)

Cross (Dad)Bb X (Mom)BB.

List the possible genotypes from this cross.

• BB, Bb, bb

• BB

• BB, Bb

• bb,Bb

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

different forms of the same gene are called

• alleles
• genetics
• p generation
• law of segregation

What goes in box 3

• Aabb
• AABB
• AAbb
• aaBb

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2