Bio. 1 Quizziz Ch. 10: Classical Genetics

Why it was important that Mendel crossed “true breeding” varieties of peas when he performed his crosses?

• It wasn't important- he could have gotten the same results with hybrid plants.

• The only types of garden pea plants available were "true breeding".

• Mendel wanted to make sure there were no “hidden” traits in the parental generation. This means the parents were homozygous.

• None of the responses are correct.

Tags

NGSS.HS-LS3-1

“Masks” or “dominates” the expression of the other allele:

• Dominant

• Recessive

• Homozygous

• Heterozygous

Cell division in formation of gametes:

• Recombination

• Crossing Over

• Mitosis

• Meiosis

Tags

NGSS.HS-LS3-2

In mink, brown fur color is dominant to silver-blue fur color. If a homozygous brown mink (BB) is mated with a silver-blue mink (bb) and 8 offspring are produced, how many would be expected to be silver-blue?

• 0

• 6

• 3

• 8

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3

The actual genetic makeup of the organism--> the allele pairs:

• prototype

• phenotype

• genotype

• nanotype

Tags

NGSS.HS-LS3-2

These types of chromosomes are found in gametes:

• diploid chromosomes

• haploid chromosomes

• polyploid chromosomes

• recombinant chromosomes

Tags

NGSS.HS-LS3-2

A white mouse whose parents are both white produces only brown offspring when mated with a brown mouse. The white mouse is most probably ____.

• homozygous recessive

• homozygous dominant

• heterozygous

• haploid

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

The SKIN CELL of a human will have a total of ___ chromosomes.

• 12.5

• 23

• 46

• 92

If two heterozygous individuals are crossed, what percent of their offspring are also expected to be heterozygous?

• 25%

• 50%

• 75%

• 100%

Tags

NGSS.HS-LS3-3

This type of individual will ALWAYS have a genotype with 2 lower case letters such as this: bb

• recombinant recessive

• heterozygous

• homozygous dominant

• homozygous recessive