Genetics

Question 1

What is DNA?

Answer 1

is the molecule
in the nucleus that carries our genetic code.

Question 2

What is a Chromosome?

Answer 2

A chromosome is a length of DNA.

Question 3

How do chromosomes work

Answer 3

• Each gene codes for a specific protein –
  which give us our unique characteristics.

Question 4

What is a gene?

Answer 4

Genes are small sections of
chromosomes (DNA) that code for a
particular characteristic. (protein)

Question 5

How do genes work?

Answer 5

Genes contain a code that code for a particular sequence (chain) of amino acids.

Question 6

What is a allele?

Answer 6

An allele is a different/alternate form of a gene.

Question 7

What is a Homozygous alleles

Answer 7

They are are two alleles that are the same.

Question 8

What is Heterozygous alleles

Answer 8

They are two alleles that are different

Question 9

What is a dominant alleles?

Answer 9

They are always expressed if they are prese

Question 10

What are

Answer 10

Recessive alleles

Question 11

What is a homozygous alle?

Answer 11

It’s like If an individual has 2 alleles the same (e.g. BB, tt etc)

Question 12

What are heterozygous alleles?

Answer 12

It’s like If an individual has 2 different alleles (e.g. Bb, Tt etc)

Question 13

What allele ss mean?

Answer 13

Straight hair

Question 14

What allele Ww mean?

Answer 14

Normal weight

Question 15

What allele EE mean?

Answer 15

Attached earlobes

Question 16

What allele Bb mean?

Answer 16

Brown eyes

Question 17

What allele ss mean?

Answer 17

Curly hair

Question 18

What allele TT mean?

Answer 18

Tall

Question 19

What allele Ss mean?

Answer 19

Straight hair

Question 20

What allele pp mean?

Answer 20

White flower

Question 21

What allele Tt mean?

Answer 21

Tall

Question 22

What allele Rr mean?

Answer 22

Roll tongue

Question 23

What allele CC mean?

Answer 23

Normal vision

Question 24

What allele WW mean?

Answer 24

Normal weight

Question 25

What allele pp mean?

Answer 25

White flowers

Question 26

What allele cc mean?

Answer 26

Colour blind

Question 27

What allele Ee mean?

Answer 27

Attached earlobes

Question 28

What allele PP mean?

Answer 28

Purple flower

Question 29

What is the relationship with the allele on a homozygous

Answer 29

Alleles are same

Question 30

What is the relationship with the allele on a heterozygous

Answer 30

Alleles are different

Question 31

What is asexual reproduction

Answer 31

Asexual reproduction is a method of reproducing without sex and therefore with out sex cells (gametes).

Question 32

What is a cell division

Answer 32

Unicellular organisms, like bacteria, cannot increase in size indefinately because they are made of only one cell which performs all the functions necessary for life.

Question 33

The genome of an organism is modified by introducing a

Answer 33

Gene from another organism