Genetics Grade 11

Which of these scientists/philosophers is considered to be the Father of Genetics?

• Darwin

• Mendel

• Fleming

• Harvey

In a cross between two hybrid individuals for one autosomal recessive trait, what is the genotypic ratio of the offspring (HH: Hh: hh)?

• 1:1:0

• 1:2:1

• 0:3:1

• 9:3:3

What is the name given to alternative forms of the same gene?

• Chromosome

• Gamete

• Genome

• Allele

• Two options are correct

Mitosis is to growth as Meiosis is to _______:

• Reproduction

• Respiration

• Energy production

• None of the above

• Two options are correct

Tags

NGSS.HS-LS3-2

Hemophilia is an X-linked recessive disorder in humans. A hemophiliac man and a non-hemophiliac woman who is homozygous have a son. What is the chance that their son will have the disease?

• 100%

• 75%

• 50%

• 25%

• 0%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Humans possess:

• Equal numbers of autosomes and sex chromosomes

• 22 pairs of sex chromosomes and 1 pair of autosomes

• 23 pairs of autosomes

• 22 pairs of autosomes and 1 pair of sex chromosomes

Tags

NGSS.HS-LS3-1

Pollen from the stamens (male) of a plant with blue flowers is placed on the stigma (female) of a yellow flowered plant. All of offspring in the F₁ generation produced yellow flowers. Which term best describes the mode of inheritance for the yellow flower trait?

• Codominant with blue

• Recessive to blue

• Completely dominant to blue

• Incompletely dominant with blue

• Two of the above are correct

Tags

NGSS.HS-LS3-1

During which stage in the cell cycle does the DNA replicate itself?

• Interphase

• Synthesis

• Prophase I

• Two options are correct

A black horse is crossed with a white horse and the offspring is grey. This is an example of which mode of inheritance?

• Incomplete dominance

• Autosomal recessive

• Codominance

• Autosomal dominant

• Sex-linked recessive

During what meiotic stage do tetrads separate?

• Metaphase I

• Metaphase II

• Anaphase I

• Anaphase II

• Two options are correct