D 2.1 HL Cell & Nuclear Division

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Multiple Choice Quiz

During which stage of meiosis does crossing over usually occur? *

1 point

A. Prophase I

B. Metaphase I

C. Prophase II

D. Metaphase II

In which situation are alleles exchanged? *

1 point

A. During the separation of sister chromatids

B. In the transmission of linked genes

C. During fertilization when sperm and egg chromosomes pair up

D. When chiasmata are formed between non-sister chromatids

When do chiasmata form in meiosis? *

1 point

A. During prophase I

B. During metaphase I

C. During anaphase I

D. During prophase II

The diagram shows the concentration of four cyclins during the cell cycle. Which curve represents the cyclin that promotes the assembly of the mitotic spindle? *

1 point

If the haploid number of a species is 14, how many chromatids will there be in metaphase I in a dividing diploid cell? *

1 point

A. 7

B. 14

C. 28

D. 56

At which stage of meiosis does a pair of sister chromatids separate? *

1 point

A. Metaphase I

B. Anaphase I

C. Metaphase II

D. Anaphase II

What happens in crossing over? *

1 point

A. Exchange of genetic material between homologous chromosomes

B. Exchange of genes during metaphase of mitosis

C. Random distribution of chromosomes during meiosis

D. Homologous chromosomes fail to separate during meiosis

How does meiosis cause Mendel’s law of independent assortment? *

1 point

A. Linked genes are randomly separated.

B. The chromosome number is divided twice.

C. Crossing-over occurs in Anaphase I.

D. Alleles that are not in the same linkage group are segregated.

The diagram below shows chromosomes during meiosis. How many chromosomes and chiasmata are visible? *

1 point

A. 4 Chromosomes, 4 Chiasmata

B. 2 Chromosomes, 4 Chiasmata

C. 2 Chromosomes, 2 Chiasmata

D. 4 Chromosomes, 2 Chiasmata

What is a difference between a cell in the G1 phase and a cell in the G2 phase of the cell cycle? *

1 point

A. A cell in the G2 phase would be smaller than a cell in the G1 phase.

B. A cell in the G2 phase would have more mitochondria than a cell in the G1 phase.

C. A cell in the G1 phase would have more DNA in its chromosomes than a cell in the G2 phase.

D. DNA replication occurs in the G1 phase but not in the G2 phase.

Maize (Zea mays) contains 20 chromosomes in a diploid cell. How many chromosomes will be in each cell after the first and second division of meiosis? *

1 point

Which gametes can result from the following crossover? *

1 point

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