LEVEL 2: CHROMOSOME CHAOS"

Question 1

In mitosis, chromosomes align at the center of the cell during metaphase

Accepted Answer

o

Question 2

During meiosis, genetic variation is introduced through crossing over, which occurs in metaphase I

Accepted Answer

x

Question 3

The spindle fiber is responsible for pulling chromatids apart during cell division

Accepted Answer

o

Question 4

Which of the following is NOT a component of DNA?

Accepted Answer

2

Question 5

What is the role of genes in an organism?

Accepted Answer

0

Question 6

DNA is made of repeating units called:

Accepted Answer

1

Question 7

Why is meiosis important in reproductive cells, and how does it affect chromosome number in offspring?

Accepted Answer

1

Question 8

Diagram 3 shows two stages in meiosis
What is the chromosomal behavior at stage P ?

Accepted Answer

3

Question 9

What is the key difference between prophase I of meiosis and prophase of mitosis?

Accepted Answer

1

Question 10

During which stage of meiosis do homologous chromosomes separate?

Accepted Answer

2

Question 11

8.	Diagram 11 shows a stage in one of the phases in meiosis
What is the importance of R ?

Accepted Answer

1

Question 12

Which of the following best describes the cells produced at the end of meiosis?

Accepted Answer

1

Question 13

Diagram 4 shows a phase in mitosis
What is this phase ?

Accepted Answer

2

Question 14

Diagram 1 shows the stages of cell division.
i)	    Name the type of cell division as shown in Diagram 1
ii)	Name the structure W
iii)	How many structures W in each cell at stage P?

Accepted Answer

i) Mitosis ii) Chromosome  iii) 46

Accepted Answer

mitosis

Accepted Answer

chromosome

Accepted Answer

46

Question 15

i) State the importance of the process in Diagram 1
ii)What happens to the chromosomes during stage C
iii)What is the effect of the process in (ii) on the offspring?

Accepted Answer

i) Production of gametes or four non-identical daughter cells.  ii) Crossing over  iii) Exchange of genetic information between homologous chromosomes and cause variation

Accepted Answer

Production of gametes or four non-identical daughter cells. Crossing over  . Exchange of genetic information between homologous chromosomes and cause variation

Accepted Answer

four non-identical daughter cells, crossing over, exchange of genetic information

Accepted Answer

four daughter cells, crossing over, exchange of genetic information