TOPHAT EXAM 1

Question 1

True or False: Prokaryotes separate replicated circular chromosomes to opposite sides of the cell

Answer 1

False

Question 2

The following statements describe either mitosis, meiosis, or both. Which of the following statements is unique to Meiosis only?

A. Contributes to genetic diversity of a species

B. DNA is duplicated before cell division

C. Results in genetically identical cells

D. Used during asexual reproduction

Answer 2

A. Contributes to genetic diversity of a species (mitosis is for replication)

Question 3

In a diploid organism with 48 total chromosomes, how many tetras would be expected to form during meiosis?

A. 12

B. 24

C. 48

D. 96

Answer 3

B. 24 (occurs when 2 X come together)

Question 4

True or False: Sister chromatids separate during anaphase I of meiosis.

Answer 4

False (They are seperated in meiosis II)

Question 5

Almost identical chromosomes one inherited from each parent

Answer 5

Homologous chromosomes

Question 6

Either of two identical chromosomes following DNA replication that are joined at the centromere

Answer 6

Sister chromatids

Question 7

Pair of homologous chromosomes seen in early prophase I

Answer 7

Bivalent

Question 8

More condensed pair of chromosomes seen in later stages of prophase I

Answer 8

Tetrad

Question 9

If a normal diploid somatic cell has 50 chromosomes. How many DNA molecules are in a cell after the first meiotic division?

Answer 9

50

Question 10

Mutations in mitochondrial genome can be passed down from father to son? True/False

Answer 10

False