Mendelian Genetics

What is the percentage of homozygous recessive offspring?

• 0%
• 25%
• 50%
• 75%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

Dominant alleles are represented by a(n)

• phenotype
• lower case letter
• upper case letter
• punnett square 

Tags

NGSS.HS-LS3-1

The observable traits of an organism are known as its

• allele
• dominance
• phenotype
• genotype

Chromosomes that carry genes that code for the same products, such as hemoglobin or eye pigment, are said to be:

• homologous
• heterozygous
• heterogeneous
• homozygous

If a pea plant were homozygous recessive for height, how would its alleles be represented?

• TT
• Tt
• tt
• tT

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.

Two brown eyed parents (Bb) have a baby. What is the chance the baby is blue eyed?

• 0 %
• 25%
• 50%
• 75%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

Sex-linked traits are usually found

• on the X chromosome

• on the Y chromosome

• on an autosome

• only in gametes

A trait that is found primarily in boys/men is most likely

• Y-linked recessive

• X-linked recessive

• X-linked dominant

• Autosomal dominant

A trait that is more common in girls than boys is most likely

• Y-linked recessive

• Y-linked dominant

• X-linked recessive

• X-linked dominant