Monohybrid Crosses

The following items are examples of __________.

Items: eye color, hair color, height

• homozygous alleles

• genotype

• heterozygous alleles

• phenotype

Tags

NGSS.HS-LS3-1

Which term means having two of the same alleles for the trait.

• homozygous

• hetrozygous

• protein

• chromosome

Which term means having two different alleles for a trait.

• protein

• homozygous

• heterozygous

• genotype

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

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

Which of the following genotypes would be considered heterozygous?

• BB
• gg
• Ff
• TT

Tags

NGSS.HS-LS3-1

Which of the following genotypes is homozygous recessive?

• Tt

• tt

• TT

• T

An allele whose trait always shows up in the organism when the allele is present.

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

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-LS3-3

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

Which of the following is a phenotype?

• BB
• Bb
• bb
• Blue eyes

Tags

NGSS.HS-LS3-1