Autosomal Linkage Flashcards

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1
Q

What is a autosome?

A

all the non-sex chromosomes

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2
Q

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

A

we have 46 chromosomes and 2 of them are sex chromosomes

so we have 44 autosomes

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3
Q

What are genes on the same autosome?

A

they are linked

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4
Q

What happens during indepndent segregation in autosomes?

A

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

they will be inherited together

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5
Q

What does independant segregation affect?

A

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

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6
Q

What does autosomal linkage mean?

A

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

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7
Q

What can cause autosomal linkage to not happen?

A

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

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8
Q

The closer the loci of genes….

A

on the autosome, the more closing linked they are

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