6.1 Inheritance

Question 1

What do your genes control?

Answer 1

The characteristics of your body

Question 2

What can be found in the nucleus of cells?

Answer 2

Chromosome (threads)

Question 3

Where are your genes found?

Answer 3

In your chromosomes

Question 4

What is the name for sex cells?

Answer 4

Gametes

Question 5

How many sets of chromosomes are in one gamete?

Answer 5

One, therefore nuclei of male and female gametes contain one set of genes

Question 6

What are chromosomes made up of?

Answer 6

Genes

Question 7

What is genetic variation?

Answer 7

Genes controlling the development characteristics

Question 8

What is variation?

Answer 8

The difference between organisms, anything that separates them

Question 9

What is DNA?

Answer 9

How information is stored in the genes (massive molecules)

Question 10

How are DNA structured?

Answer 10

A double helix

Question 11

What is DNA made of?

Answer 11

4 different sugar bases

Question 12

Order these:

Chromosome DNA Gene

Answer 12

DNA - gene - chromosome

Question 13

How many chromosomes do humans have in each cell?

Answer 13

23 pairs

Question 14

Which human cells do not hold chromosomes?

Answer 14

Red blood cells

Question 15

Chromosomes for females are:

Answer 15

XX

Question 16

Chromosomes for males are:

Answer 16

XY

Question 17

Which parents provides the X chromosome?

Answer 17

Mother and father

Question 18

Which parents provides the Y chromosome?

Answer 18

Father

Question 19

Which chromosome is dominant?

Answer 19

Y

Question 20

What is an allele?

Answer 20

Two versions of the same gene, ex hair colour gene, could be brown allele or blonde allele

Question 21

Why do organisms have similar characteristics to their parents?

Answer 21

Genes are passed in sex cells from parents to offspring