Sex-linked Characteristics flashcards


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How are sex-linked characteristics determined? they are determined by genes located on the sex chromosomes
What are X-linked characteristics? they are genes located on the X-chromosomes
What are Y-linked characteristics? they are genes located on the Y chromosomes
Which chromosome has more genetic material, X or Y? X chromosomes have more genetic material
who was the first person to suggest the idea of sex-linked inheritance? A biologist known as Thomas Hunt Morgan
when morgan crossed white eyed males with homozygous red eyed female, what was the result? all 1237 of the progeny had red eyes, and 3 white eyed males
what did morgan attribute the three eyed males to? mutation
what was calvin bridges explanation of the appearance of the red eyed males & white eyed females?, he hypothesized that sometimes the X chromosome in female doesn't separate in anaphase I
what did bridges term the failure of chromosomal separation? nondisjunction
what are barr bodies? barr bodies are inactive X chromosome in a female somatic cell that is inactive due to lyonization
what is the Chromosome theory of inheritance? it states that genes are located on chromosomes.
what are X-Linked characteristics? they are characteristics determined by a gene on the X chromosome
what is an example of X-Linked characteristic? color blindness
In organisms with ZZ-ZW sex determination, males are? homogametic
The inheritance of Z-linked characteristics is the same as? X-linked characteristics expect that pattern of inheritance in males and females is reversed
In organisms with ZZ-ZW sex determination, females inherit ____ chromosome from their mothers, and ____from father W chromosome from her mother and Z chromosome from her father
In organisms with ZZ-ZW sex determination, MALES inherit ____ chromosome from their mothers, and ____from father inherits z linked allele from the mother and the father
Y-linked characteristics are present in? males
why is Y-linked characteristics found in males? it is found in males because males inherit the Y chromosome from their fathers
What are some examples of Y linked characteristics? hairy ears in some part of the world like the middle east

How are sex-linked characteristics determined?

What are X-linked characteristics?

What are Y-linked characteristics?

Which chromosome has more genetic material, X or Y?

who was the first person to suggest the idea of sex-linked inheritance?

when morgan crossed white eyed males with homozygous red eyed female, what was the result?

what did morgan attribute the three eyed males to?

what was calvin bridges explanation of the appearance of the red eyed males & white eyed females?,

what did bridges term the failure of chromosomal separation?

what are barr bodies?

what is the Chromosome theory of inheritance?

what are X-Linked characteristics?

what is an example of X-Linked characteristic?

In organisms with ZZ-ZW sex determination, males are?

The inheritance of Z-linked characteristics is the same as?

In organisms with ZZ-ZW sex determination, females inherit ____ chromosome from their mothers, and ____from father

In organisms with ZZ-ZW sex determination, MALES inherit ____ chromosome from their mothers, and ____from father

Y-linked characteristics are present in?

why is Y-linked characteristics found in males?

What are some examples of Y linked characteristics?

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