Prep.3 Science First term U4 L1 Cell division

1 / 21

Choose :
The tpye of division in somatic cells is ---------- division .
a

. meiotic

b. reduction c.

d. no correct answe

mitotic

2 / 21

Choose :
The gametes contain a group of chromosomes called -------- .

dipliod number .

b. hapliod number .

d. tetrad

3 / 21

Choose :
A tetrad consists of -------- chromosomes .

d. 8

b. 4

. 2

4 / 21

- Put (true) or (false) :-
Zygot contains half of genetic material ( )

true

false

5 / 21

- Put (true) or (false) :-
The point of connection of two chromatids is called centrosome ( )

true

false

6 / 21

- Put (true) or (false) :-
The number of chromosoumes in man is 46 ( )

true

false

7 / 21

- Put (true) or (false) :-
The number of chromosoumes in man is 46 ( )

true

false

8 / 21

- Put (true) or (false) :-
Sperm contains the complete genetic material ( )

true

false

9 / 21

- Put (true) or (false) :-
Ovum is produced by meitotic division ( )

true

false

10 / 21

- Put (true) or (false) :-
Ovum contains the complete genetic material ( )

true

false

11 / 21

- Put (true) or (false) :-
Chromosomes are arranged on cell equator at metaphase ( )

true

false

12 / 21

- Choose the correct answer :-
The number of polleugrains chromosomes is ..... the number ()

equal ,

half ,

double

13 / 21

- Choose the correct answer :-
The cell prepare itself for division in ............. phase
()

metaphase

- anaphase -

telophase -

prphase

14 / 21

- Choose the correct answer :-
Tetrad consists of ..... chromosomes ( )

2

3

4

15 / 21

- Choose the correct answer :-
Meiotic division occurs in cells of ..... ()

skin

testis

, liver ,

16 / 21

- Choose the correct answer :-
If the skin in man contains 46 chromosomes, then the sperm cotains ............. chromosomes
()

, 23 pairs

, 92

, 23

17 / 21

- Choose the correct answer :-
Chromosomes are arranged on equator of cell at ..... (

prophase , , )

metaphase

telophase

18 / 21

- Choose the correct answer :-
..... don't divide ()

Nervous

Skin,

liver

19 / 21

Put ( √ ) or ( × ) :
The universe is in a state of continous expansion . ( )

true

false

20 / 21

Put ( √ ) or ( × ) :
Galaxies emerged from the Big Bang .

true

false

21 / 21

Put ( √ ) or ( × ) :
Galaxies move away in the cosmic space .( )

true

false

نتيجتك هي

تسجيل الدخول