Mitosis, Meiosis, or Both? (bio test 3)

Why, for sexual reproduction, it is extremely important that the two gametes only have HALF the DNA that living things need?

           A. So the offspring has only half the DNA.

           B. So the offspring has a correct set of DNA if one set is damaged. 

            C. To create a new offspring that is genetically identical to the parent.

           D. So that the offspring has a unique diploid set of chromosomes.

D

What advantage does a species that reproduces sexually have over a species that reproduces asexually?

 A. There is greater variation among the offspring.

 B. The offspring are identical to the parents.

 C. Only one parent is necessary for reproduction.

 D. No sex cells are needed for reproduction.

A

Each somatic cell of a goldfish contains 94 chromosomes. How many chromosomes are contained in a goldfish gametic cell?

A. 23                                                   

B. 47

C. 94

D. 188

B

This could be a cell in the process of:  

1. Mitosis

2. Meiosis

3. Either mitosis or meiosis

C

This could be a cell in the process of:  

1. Mitosis

2. Meiosis

3. Either mitosis or meiosis

B

This could be a cell about to begin:   

1. Mitosis

2. Meiosis

3. Either mitosis or meiosis

B

This shows: 

1. Meiosis I

2. Meiosis II

B

This could be a cell in the process of:  

1. Mitosis

2. Meiosis

3. Either mitosis or meiosis

C

This could be a cell in the process of:  

1. Mitosis

2. Meiosis

3. Either mitosis or meiosis

B

This could be a cell in the process of:  

1. Mitosis

2. Meiosis

3. Either mitosis or meiosis

C