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Question 1

How many chromosomes does each human cell have?

Answer 1

46

Question 2

Is eye colour inherited or environmental?

Answer 2

Inherited because the gene is passed down by your parents

Question 3

Who produced the first picture of DNA?

Answer 3

Rosalind Franklin

Question 4

Where are chromosomes found in the cell?

Answer 4

In the nucleus

Question 5

What is the shape of DNA?

Answer 5

A double Helix

Question 6

What is the definition of a gene?

Answer 6

A section of a DNA that gives you a certain characteristic

Question 7

How many genes do we have?

Answer 7

Around 20,000

Question 8

What are the base pairs of a DNA?

Answer 8

G-C and A-T

Question 9

What is natural selection?

Answer 9

Natural selection is where organisms with characteristics that make them better at competing survive and less successful competitors die.

Question 10

What is one copy of all your chromosomes called?

Answer 10

Your genome

Question 11

What is a species?

Answer 11

Same group of organisms that breed with each-other to produce fertile offspring

Question 12

What happens when two different species reproduce?

Answer 12

They produce infertile offspring

Question 13

What is selective breeding?

Answer 13

Only allowing chosen individuals with desired features to breed so their offspring have those features as well e.g. Dogs with large ears would breed with other large eared dogs so their offspring has large ears

Question 14

What is variation?

Answer 14

The differences of individuals in the same species or od two different speices e.g. some humans are male, some are female but they are the same speices

Question 15

give an example of environmental variation

Answer 15

Accent, language, diet, lifestyle ect

Question 16

What is a continuous variation?

Answer 16

A feature that can vary over a range of values

Question 17

Is blood type a continuous or discontinuous variation? Why?

Answer 17

It is discontinuous because you can only have four blood types (A,B, AB, O) so there isn’t a range of values

Question 18

What does extinct mean?

Answer 18

No more of a species are left

Question 19

What is a Gene bank?

Answer 19

Gene banks store the genes of different speices

Question 20

How are animal genes stored?

Answer 20

The sperm and egg of the species are frozen so they can be stored and may be able to create animal embryos if the animal goes extinct

Question 21

Why do we have gene banks?

Answer 21

To be able to store the genes of organisms if they go extinct