Ch 7 Patterns of Inheritance Flashcards
What does co dominance look like?
Both dominate alleles are fully expressed. No blending of traits.
What does incomplete dominance look like?
A blending of the traits.
Why do some traits have a huge range of variations?
Because they could be polygenetic traits, meaning the are controlled by many different genes resulting in may combinations.
What are sex linked traits?
Trait carried on the x chromosome.
Why do sex linked traits show up in men more frequently than women??
Men only have 1 X chromosome so any allele they get, even if it is recessive is expressed.
Why are can men not be carries but women can of sex linked traits?
Men only have 1 X chromosome so any allele they get, even if it is recessive is expressed. Women have 2 X chromosomes so their repressive allele could be covered up by a dominate one, yet still passed on to an offspring.
Where do boy get most of their traits on the y chromosome?
No, just like women the majority of traits are coded for on the 22 pair of autosomal chromosomes. The y is the smallest chromosome and hold the fewest traits/genes
