Meiosis and genetic variation

Which of the statement is false about INTERPHASE?

• Cell grows during interphase

• DNA is replicated during S-phase

• Interphase only happens in Mitosis and not Meiosis

• Interphase happens once during Meiosis

1. Which process makes variation / genetic diversity possible?

• a. Mitosis

• b. Meiosis

• c. Both

• d. None

Tags

NGSS.HS-LS3-2

1. What is crossing over?

• a. When two homologous chromosomes transfer and exchange genetic information between themselves in Prophase I

• b. When two homologous chromosomes lie side by side and form tetrad.

• c. When two sister chromatids transfer and exchange genetic Information in Prophase I

• d. It is a process that occurs in Prophase II of Mitosis

Tags

NGSS.HS-LS3-2

1. How many cycles of Prophase, Metaphase, Anaphase and Telophase occur in Meiosis?

• a. 1

• b. 2

• c. 3

• d. 4

1. Even though humans are approximately 99.9% identical in their genetic makeup, an incredible amount of variation is seen among individuals of the species. This genetic variation is greatly influenced by the process of meiosis.

Of the following events that occur during meiosis, which contributes most to genetic diversity in the human population?

• A. Condensation of chromatin during meiosis I

• B. Recombination between homologous chromatids during meiosis I

• C. Alignment of sister chromatids at the metaphase plate during meiosis II

• D. Separation of sister chromatids during meiosis II

Tags

NGSS.HS-LS3-2

NGSS.HS-LS4-2

1. Which of the following correctly describes meiosis?

• A.

  Meiosis begins with a diploid parent cell and ends with four haploid daughter cells.

• B. Meiosis begins with a diploid parent cell and ends with two diploid daughter cells.

  .

• C. Meiosis begins with a haploid parent cell and ends with two haploid daughter cells.

• D. Meiosis begins with a haploid parent cell and ends with four haploid daughter cells

Tags

NGSS.HS-LS3-2

. If an organism has an N number of 10 chromosomes (haploid # of 10), how many chromosomes are in a somatic cell (body cell) of this organism (what is the diploid #) ?

• a. 20

• b. 40

• c. 5

• d. 100

Tags

NGSS.HS-LS3-1

Which one of the following is a way that Mitosis is different from Meiosis:

• a. Meiosis results in 2 daughter cells, while Mitosis produces 4 daughter cells

• b. Meiosis results in 4 daughter cells, while Mitosis produces 2 daughter cells

• c. Cells produced by meiosis are all genetically different

• d. Both b and c are correct

Tags

NGSS.HS-LS3-2

NGSS.HS-LS1-4

Homologous chromosomes contain genes that code for the same traits, but they carry different versions (alleles) of these genes.

• True

• false

Tags

NGSS.HS-LS3-2

NGSS.HS-LS3-1

Homologous chromosomes pair up side-by-side in tetrads along the middle of the cell during what kind of cell division?

• a. Mitosis

• b. Meiosis

• c. Both

• d. Neither