year 10 biology

Question 1

what is a gene?

Answer 1

segments of DNA that code for a particular protein

Question 2

where is DNA located?

Answer 2

The nucleus of a cell

Question 3

How is DNA organised?

Answer 3

genes found on chromosomes

Question 4

how many pairs of chromosomes do humans have?

Answer 4

23 and 46 total

Question 5

how is the information organised

Answer 5

DNA to gove to chromosome

Question 6

what makes the back bone of the DNA molecule

Answer 6

the phosphate group and sugars

Question 7

how are nitrogenous bases joined together

Answer 7

by complementary base pairing

Question 8

what is the significance of proteins

Answer 8

it gives us our traits

Question 9

what are gametes

Answer 9

reproduction or sex cells

Question 10

what does haploid mean

Answer 10

the possession of one copy of each chromosome per cell

Question 11

what does diploid mean

Answer 11

a pair set of chromosome in somatic cells

Question 12

what is a recessive allele?

Answer 12

these alleles are expressed only when there are two recessive alleles

Question 13

what are genotypes

Answer 13

the alleles that a person has Example-Bb

Question 14

what are dominant alleles

Answer 14

these alleles will always be expressed when there present

Question 15

is homozygous different or the same

Answer 15

the same

Question 16

is homozygous the same or different

Answer 16

different

Question 17

what is homologous

Answer 17

homologous means the same

Question 18

what is non-homologous mean

Answer 18

it means different