Inheritance

Question 1

Where are genes located

Answer 1

in the chromosomes in the nucleus of the cell

Question 2

Gene

Answer 2

a section of DNA that codes for a protein

Question 3

DNA molecule

Answer 3

made up of two strands of nucleotides which are held together by a series of paired bases (Adenine + Thymine and Cytosine + Guanine). They have a back bone of sugar molecules attached to a phosphate molecule.

Question 4

Adenine + ?

Answer 4

? = Thymine

Question 5

Guanine + ?

Answer 5

? = Cytosine

Question 6

Thymine + ?

Answer 6

? = Adenine

Question 7

Cytosine + ?

Answer 7

? = Guanine

Question 8

Alleles

Answer 8

Different versions of the same gene

Question 9

Homozygous

Answer 9

two copies of the same alleles

Question 10

Heterozygous

Answer 10

two copies of the different alleles

Question 11

Dominant

Answer 11

alleles that are expressed when one copy of the allele is present

Question 12

Recessive

Answer 12

alleles that are expressed only when two copies are present

Question 13

Genotype

Answer 13

the gene or allele that an organism has

Question 14

Phenotype

Answer 14

trait or characteristics that are expressed

Question 15

Mitosis

Answer 15

used for growth, repair and asexual reproduction

Question 16

Meiosis

Answer 16

used to produce gametes for sexual reproduction