Genetics

Question 1

Characteristic

Answer 1

Distinguishing quality or feature such as eye colour or wing shape

Question 2

Trait

Answer 2

Variation of characteristic such as eye colour

Question 3

Hereditary

Answer 3

Transmission of characteristics from one generation to the next

Question 4

Heritable characteristic

Answer 4

Characteristics that are passed from parent to offspring

Question 5

Non heritable characteristic

Answer 5

Characteristics that cant be passed on to other generations

Question 6

Discrete variation

Answer 6

Traits that have defined form

Attached/ not earlobes

Question 7

Continuous variation

Answer 7

Traits that have range of forms

Height

Question 8

DNA

Answer 8

Molecule that encodes genetic information used in development and functioning of all livings organisms

Modelled in shape of double helix (twisted ladder)

Question 9

Four chemicals encoded in DNA

Answer 9

Guanine and cytosine

Adenine and thymine

Question 10

Generic code

Answer 10

Based on arrangement of 4 chemicals into instructions that describes how to make organism

Question 11

Gene

Answer 11

Uninterrupted segment of DNA which contains coded instructions for specific characteristics

Responsible for inheritance of organism’s characteristic

Question 12

Allele

Answer 12

Each possible version of gene

Question 13

How many in human DNA set

Answer 13

46 chromosomes