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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
If a normal human cell has 46 chromosomes, how many chromosomes will be there in a human (i) sperm cell, and (ii) zygote?
In a human, how many chromosmes are present in a sperm in the testes?
Choose the correct answer :
Human sex chromosomes are __________
Choose the correct answer:
A man can transfer his sex-linked gene to his ______________
Which type of sex determination is observed in honey bee?
Chromosomal constitution of normal human females can be written as ______.
Which of the following decides the sex of the child?
Female heterogamy is shown by
Also describe as to, who determines the sex of an unborn child? Mention whether temperature has a role in sex determination.
