ET Meiosis & Monohybrid Review 3/10/25

Cells that have pairs of every chromosome are called______________ while cells that have one copy of a chromosome are called____________________?

• complete, incomplete

• multiploid, monoploid

• diploid, haploid

• megaploid, uniploid

Crossing over helps promote ?

• male genotype
• genetic variation
• DNA replication
• mitosis

With mitosis you get ___, _________ cells, but with meiosis, you get ___, ____________.

• 4 different, 2 identical
• 4 identical, 2 different
• 2 different, 4 identical
• 2 identical, 4 different

With mitosis you get ___, _________ cells, but with meiosis, you get ___, ____________.

• 4 different, 2 identical
• 4 identical, 2 different
• 2 different, 4 identical
• 2 identical, 4 different

Describe the process of anaphase I in meiosis.

• Sister chromatids separate and move to opposite poles of the cell.

• The cell divides into two daughter cells.

• The chromosomes replicate.

• Homologous chromosomes separate and move to opposite poles of the cell.

What is the difference between meiosis I and meiosis II?

• Separation of homologous chromosomes in meiosis I and separation of sister chromatids in meiosis II

• Pairing of homologous chromosomes in meiosis I and pairing of sister chromatids in meiosis II

• Meiosis I occurs in males and meiosis II occurs in females

• No difference between meiosis I and meiosis II

In cacti, long arms (A) are dominant to short arms (a).  Suppose 2 heterozygous cacti are crossed.  What percentage of their offspring are expected to have short arms?

• 0%
• 25%
• 75%
• 100%

What are the chances that the offspring will have homozygous recessive traits?

• 1 in 4

• 3 out of 4

• 75%

• 50%

What are the chances that the offspring will have homozygous recessive traits?

• 1 in 4

• 3 out of 4

• 75%

• 50%

What is the genotypic ratio represented by the punnett square?

• 1:1

• 3:1

• 1:3

• 1:2:1