Autosomal Linkage

Question 1

What is a autosome?

Answer 1

all the non-sex chromosomes

Question 2

How many chromosomes do humans have and how many of them are autosomes?

Answer 2

we have 46 chromosomes and 2 of them are sex chromosomes

so we have 44 autosomes

Question 3

What are genes on the same autosome?

Answer 3

they are linked

Question 4

What happens during indepndent segregation in autosomes?

Answer 4

they will stay together but if they are on separate chromosomes, they will be separated

they will be inherited together

Question 5

What does independant segregation affect?

Answer 5

the expected phenotypic ratio froma dihybrid cross - because they are inherited together, they act like a monohybrid cross

Question 6

What does autosomal linkage mean?

Answer 6

that more offspring will have the same genotype and phenotype as their parents

Question 7

What can cause autosomal linkage to not happen?

Answer 7

crossing over - the alleles that are separated during this

offspring will have their parents genotype and pehnotype

some will have other genotypes and phenotypes because of crossing over

Question 8

The closer the loci of genes….

Answer 8

on the autosome, the more closing linked they are