3. Linkage

Question 1

define sex linked

Answer 1

any gene that is coded by genes found on sex cells only

Question 2

define an autosome

Answer 2

a chromosome which is not a sex chromosome

Question 3

define autosomal linkage

Answer 3

where two or more genes are carried on the same chromosome (autosome)

Question 4

any sex-linked genes will have been passed on from ______ _______

Answer 4

female parents

Question 5

give two examples of a sex linked disorder

Answer 5

• colour blindless
• haemophilia

Question 6

how can you tell how close loci are on a chromosome

Answer 6

the closer together the loci, the lower the chance of chiasma forming between them, which would separate them