Genes, Chromosomes, And DNA

Question 1

What is it called when Living Things have similarities and differences

Answer 1

Inherited characteristics or environmental characteristics

Question 2

What is the difference between a histogram and a bar chart

Answer 2

A histogram as connected boxes and a bar chart has distante boxes

Question 3

What other characteristics are other examples of continuous varitation

Answer 3

Height, weight, hand span

Question 4

What other characteristics are examples of a discontinuous variation

Answer 4

Characteristics with limited number of categories: Eye colour, left/right handed, tongue rolling, ear lobes attached or detached

Question 5

What do chromosomes always come in

Answer 5

Pairs

Question 6

How many cells do humans have

Answer 6

23 pairs of chromosome

Question 7

What are chromosomes and genes?

Answer 7

Chromosomes carry all the information needed for the development of a new animal or plant. Different sorts of animals and plants have different numbers of chromosomes.

Question 8

How are sex cells Inherited

Answer 8

After sexual reproduction Sex cells From parents pass on genetic information one half is from the mother, and the other half is from the father. This information controls how the body cells of the young animal or plant develop

Question 9

Identify XX

Answer 9

XX means its going to be a girl

Question 10

Identify XY

Answer 10

Xy means its going to be a boy

Question 11

Describe your fingerprint

Answer 11

Arch

Question 12

What is selective breeding

Answer 12

They choose the best plants and animals for breeding.

Question 13

What is inside the nucleus

Answer 13

Chromosomes

Question 14

Which cell in my body does not contain a nucleus

Answer 14

Red blood cell

Question 15

Fruit flies have _ pairs of chromosomes

Answer 15

4

Question 16

What does DNA stand for

Answer 16

deoxyribonucleic acid

Question 17

How is genetic information passed on

Answer 17

After sexual reproduction Sex cells are made they pass on genetic information . This information controls how the body cells of the young animal or plant developed.

Question 18

What is the independent variable for discontinuous variation?

Answer 18

Eyecolour

Question 19

What is The independent variable or for continuous variation

Answer 19

The thing that you change

Question 20

What is The dependent variable of a continuous variation

Answer 20

The thing that we measure

Question 21

What is the dependent variable for discontinuous variation?

Answer 21

Number of pupils

Question 22

When sperm cells are made in the _ they contain half the number of chromosomes

Answer 22

Testies

Question 23

Egg cells are made in the _

Answer 23

Ovary

Question 24

What determines the sex of a child, the egg or the sperm? Explain your answer

Answer 24

The sperm because the egg is X if another X sperm goes in it’s a girl but if the Y sperm enters it’s a boy

Question 25

What are gametes

Answer 25

a reproductive cell of an animal or plant.

Question 26

What is an allele

Answer 26

matching genes; one from our biological mother, one from our biological father.

Question 27

What are three advantages of genetic modified crops?

Answer 27

ability to grow in salty soil,
enhanced flavor. longer shelf life and therefore less waste.

Question 28

Three disadvantages of Genetic modified crops

Answer 28

Cancer
Allergic reactions
Changes in human DNA