Sci 3\17\24

Question 1

Master copy

Answer 1

Dna

Question 2

Divided, form, 2

Answer 2

mitosis

Question 3

made

Answer 3

meiosis

Question 4

making

Answer 4

gene

Question 5

male parent

Answer 5

sperm

Question 6

female parent

Answer 6

egg

Question 7

change in genes

Answer 7

mutation

Question 8

Joining sex cells

Answer 8

fertilazation

Question 9

2 parents

Answer 9

Sexual reproduction

Question 10

One Parent

Answer 10

asexual reproduction

Question 11

t/f with 23 pairs of chromosomes in the human body there are more than 8 mill combinations possible for every human cell

Answer 11

true

Question 12

t/f dna is present in every cell of your body

Answer 12

true

Question 13

T/F during anaphase in mitosis double stranded chromosomes separate

Answer 13

true

Question 14

t\f In meiosis in haploid eggs and sperm cells

Answer 14

true

Question 15

T/f In meiosis there are 3 divisions of a nucleus

Answer 15

false

Question 16

The ______ chromosomes of each pair is called homeoglowsis chromosome

Answer 16

2

Question 17

There are ____ pairs of chromosomes found in the human body.

Answer 17

23

Question 18

Every species has a characteristic number of ____

Answer 18

chromosomes

Question 19

In all sexualy reproducing chromosomes occur in _____

Answer 19

pairs

Question 20

Sexual reproduction is the production of _____ through the process of meiosis and the fusion of sex cells.

Answer 20

offs[ring

Question 21

In the process of mitosis cells divided in ______ steps

Answer 21

2

Question 22

What is the final stage of mitosis

Answer 22

telophase

Question 23

In the cells cycle most of life of any cell is spent in which faze

Answer 23

interphase

Question 24

Which 2 scientists made a model of the DNA molecule

Answer 24

James watson and Francis Crick

Question 25

When an organism is produced by only one parent it is called _____

Answer 25

asexual reproduction

Question 26

Name the 2 ways asexual reproduction

Answer 26

regenerate and budding

Question 27

What is the main difference between sexual reproduction and asexual reproduction?

Answer 27

in sexual reproduction you need a partner of a different gender in asexual reproduction you don’t

Question 28

Name the 4 nitrogen bases.

Answer 28

Adenine, thymine, cytosine, guanine

Question 29

What is the main difference between mitosis and meiosis?

Answer 29

Mitosis needs to identical cells divided and meiosis needs one

Question 30

A: Type cell:body cell

Answer 30

sex cells

Question 31

B: Beginning of cells:Diploid

Answer 31

Diploid

Question 32

C# of cells produces:2

Answer 32

4

Question 33

D End of cell: diploid

Answer 33

Haploid

Question 34

E Number of chromosomes produced: 46

Answer 34

23