Reproduction M

The cells produced via meiosis are called (choose 2)

• sex cells

• gametes

• body cells

• skin cells

Unlike mitosis, meiosis in male mammals results in the formation of

• one haploid gamete
• three diploid gametes
• four diploid gametes
• four haploid gametes

If the 2n (diploid) number of carrots is 18, the haploid (n) number is

• 18

• 9

• 27

• 36

The chromosomes that pair up during meiosis, are called __________ chromosomes.

• homozygous

• chromatids

• homologous

• genes

How many daughter cells are produced from meiosis ?

• 10
• 6
• 4
• 2

This image shows chromosomes during Prophase 1. Which of the following correctly describes the process shown?

• segregation of sister chromatids

• condensation and segregation of alleles

• mutation in which the DNA content of the gene is altered

• crossing over or recombination in which alleles are exchanged

Why do we need meiosis?

• To double the number of chromosomes going into sex cells
• To halve the number of chromosomes going into sex cells
• To triple the number of chromosomes going into sex cells
• To not change the number of chromosomes going into sex cells

products of meiosis are genetically

• different
• identical

The structures labeled B are

• centrosomes
• sister chromatids
• centromeres
• chromopheres

• This karyotype shows Trisomy 21
• This karyotype has no abnormality
• This karyotype is missing a sex chromosome (monosomy x)
• This karyotype is from a gamete