Genetics and Meiosis Test Review

Unlike mitosis, meiosis results in the formation of

• two genetically identical cells.

• four genetically identical cells.

• four genetically different cells.

• four genetically identical cells.

What is the Genotype of individual I-1?

• FF

• Ff

• ff

• Can't know for sure

the genetic code for the gene

• phenotype
• genotype
• homozygous

True or False: Meiosis is responsible for genetic variation.

• True

• False

The dominant trait in this punnett square is

• yellow pea seeds
• green pea seeds
• there is no dominant seed

A haploid cell...

• has the complete amount of chromosomes (46)

• is represented by (2n)

• has 1/2 the amount of chromosomes

In which stage of MEIOSIS does crossing over occur? (The exchange of genetic material between chromosomes in a tetrad.)

• Anaphase I

• Metaphase I

• Prophase I

• Telophase I

W=white hair
w= non-white hair
If you cross a horse with WW and a horse with ww what fraction of the offspring would be expected to have white hair?

• none
• 3/4
• 1/2
• all

In a flowering plant species, red flower color (R) is dominant over white flower color (r). What is the genotype of any red-flowering plant resulting from this species?

• rr
• R
• RR
• RR or Rr

According to the Punnett square in basic mendelian genetics: B reprepsents the dominant gene for blue feathers and b represents the recessive gene for red feathers. Two heterozygous birds have one offspring. What percent chance does it have for red feathers?

• 0%

• 25%

• 75%

• 100%