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प्रश्न
Differentiate between male and female heterogamety.
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उत्तर
Male heterogamety: Male heterogamety includes human males having XY sex chromosomes and males of some insects, such as grasshopper and bugs, having XO sex chromosomes.
Female heterogamety: Female heterogamety includes females of some species of birds, fishes and insects. Females of butterfly and moth consist ZO sex chromosomes, while females of fish, reptiles and birds consist ZW sex chromosomes.
संबंधित प्रश्न
Explain sex determination in human beings.
How is the sex of the child determined in human beings?
Fill in the following blank with suitable word :
Genes always work in ................ .
In a human, how many chromosmes are present in a fertilised egg?
The two versions of a trait (character) which are brought in by the male and female gametes are situated on :
(a) copies of the same chromosome
(b) sex chromosomes
(c) two different chromosomes
(d) any chromosomes
Both father and mother have the genes Ee in their cells. What colour are their eyes?
Define the following:
Autosomes
Short Answer Question.
“Father is responsible for determination of sex of child and not the mother”. Justify.
XO type of sex determination and XY type of sex determination are examples of ____________.
Which of the following is incorrect regarding ZW-ZZ type of sex determination?
Identify the female heterogamety from the chromosomal complements given below.
Diploid larvae which get royal jelly as food develops into ____________ and other develops into workers (sterile females).
ZZ/ZW type of sex determination is seen in ______.
Haplodiploidy is found in ______.
A woman has only daughters. Analyse the situation genetically and provide a suitable explanation.
Female heterogamy is shown by
Which of the following group shows ZW-ZZ type of sex determination?
The sex chromosome in a human ovum is ______.
Given below are two statements:
Statement - I: The male Drosophila has a pair of homomorphic sex chromosomes.
Statement - II: The male human being has a pair of heteromorphic sex chromosomes.
In the light of above statements, Choose the most appropriate answer from the options given below:
