linked genes

Question 1

what are linked genes

Answer 1

genes close toogether on the same chromosome

Question 2

why are linked genes inherited together

Answer 2

during independent assortment, they arent seperated however they can be separated during in meiosis during crossing over

Question 3

how are linked genes written

Answer 3

the first allele of both genes are written then a slash and then the last two alleles of both genes e.g Be/be

Question 4

what is a parental gamete

Answer 4

a gamete (containing 1 allele from each gene) that the offspring and parent have the same

Question 5

what is a recombinant gamete

Answer 5

a gamete (containing 1 allele from each gene) that the offspring has that is different to the parent

Question 6

1:1

Answer 6

monohybrid testcross, shows the parent was heterozygous

Question 7

3:1

Answer 7

monohybrid cross, shows that both parents was heterozygous

Question 8

1:2:1

Answer 8

monohybrid testcross that shows incomplete dominance

Question 9

1:1:1:1

Answer 9

dihybrid testcross shows two genes unlinked

Question 10

9:3:3:1

Answer 10

dihybrid heterozygous cross that shows parents were heterozygous genes unlinked

Question 11

1:1

Answer 11

dihybrid test cross, showing parental combinations of linked genes

Question 12

1:few:few:1

Answer 12

dihybrid test cross showing mainly parental gametes but with few recombinant offspring

Question 13

if a trait is x linked dominant

Answer 13

an affected father must have an affected daughter and an affected son must have an affected mother

Question 14

if an x linked trait is recessive

Answer 14

an affected mother must have affected sons and and an affected daughter must have an affected father