Genetic Variation TEST-BIO

If a gamete of a Koala Bear has 8 chromosomes, how many chromosomes will its somatic cells have?

• 4

• 8

• 16

• 32

If a somatic cell of a Giant Panda Bear has 42 chromosomes, how many chromosomes will its gametes have after the completion of meiosis II?

• 21

• 42

• 84

• 168

Organize these options into the right categories.

Groups:

(a) Mitosis

,

(b) Meiosis

• Daughter cells are identical

• 1 cell division

• 2 cell divisions

• Produces 4 daughter cells

• Daughter cells are genetically unique

• Produces 2 daughter cells

Which of the following is NOT true about what you see in the diagram?

• Sister chromatids exchange segments of their DNA during mitosis.

• This process increases genetic variation because it creates unique combinations of alleles.

• This process happens during Prophase I of Meiosis I.

• Homologous chromosomes inherited from biological parents have crossed over.

Match the following.

• Mitosis

• 
• Meiosis I

• 
• Meiosis II

• 

Reorder the phases of Meiosis II.

• 
• 
• 
• 

Match the phases of Meiosis I.

• Anaphase I

• 
• Prophase I

• 
• Telophase I

• 
• Metaphase I

• 

Match the following. These karyotypes are for human cells.

• After DNA Replication

• 
• After Meiosis

• 
• After Mitosis

• 

Match the following.

Groups:

(a) Gametes

,

(b) Somatic Cells

• 46 chromosomes

• Used for growth and tissue repair

• Diploid

• Haploid

• Used for sexual reproduction

• 23 chromosomes

Which of the following does NOT increase the genetic variation of a species?

• Mutations to the DNA

• Crossing over during meiosis

• Random alignment of homologous chromosomes during meiosis

• DNA replication and mitosis