Advertisements
Advertisements
Question
Write the types of sex-determination mechanisms the following crosses show. Give an example of each type.
(i) Female XX with Male XO
(ii) Female ZW with Male ZZ
Advertisements
Solution
(i) The type of sex determination mechanism shown in female XX with male XO is male heterogamety.
Example- Humans
(ii) The type of sex determination mechanism shown in female ZW with male ZZ is female heterogamety.
Example- Birds
APPEARS IN
RELATED QUESTIONS
There are two sets of chromosomes in the zygote.
Does genetic combination of mother play a significant role in determining the sex of a new born baby?
A family consists of two parents and their five children and the pedigree chart below shows the inheritance of the trait colour blindness in them.
Who is colour blind in the parents – the Father or the Mother?
Choose the correct answer from the four options given below :
In a human male, a sperm will contain :
Choose the correct answer:
Males have more chances of suffering from sex-linked disease because of ___________
Choose the correct answer:
A single recessive trait, able to express must be on _________
Short Answer Question.
“Father is responsible for determination of sex of child and not the mother”. Justify.
How is sex determined in human beings?
There are five daughters and no son in a family. It is because
The ‘X’ body of Henking was observed in ______.
