In birds with a ZZ-ZW sex determination system, males are ZZ and females are ZW. Which is the heterogametic sex?
Group of answer choices
a Females
b Neither males nor females
c Both males and females
d Males
Answer- A. Females
In the Hetrogametic sex both sex, the chromosome is different.
Example - In humans males have heterogametic sex ie X and Y.
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In birds with a ZZ-ZW sex determination system, males are ZZ and females are ZW. Which...
In a ZZ-ZW sex determination system, males are ZZ and females are ZW. Which sex is going to be most affected by mutations on the Z chromosome? Group of answer choices a Males will be more affected b Females will be more affected c Additional information is needed to answer this question d Females and males will be equally affected
Birds, unlike mammals, have a sex determination system in which females have Z and a W chromosome (ZW), while males have two copies of Z (ZZ). Another fun fact: most bird species, including chickens, do not have penises. This makes it hard to determine the sex of baby chicks! There’s a gene required for pigmentation located on Z. The “barred” allele (b) of this gene is recessive to the black allele (B). If you would like to easily determine the...
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