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प्रश्न
There are ................ pairs of chromosomes in the human being.
उत्तर
There are 23 pairs of chromosomes in the human being.
APPEARS IN
संबंधित प्रश्न
Which of the two, sperm or ovum, decides the sex of the child?
In a human, how many chromosmes are present in an egg which has just been produced by the ovary?
In a human, how many chromosmes are present in a skin cell?
A couple with a newborn baby is troubled that the child does not resemble either of them. Suspecting that a mixup occurred at the hospital, they check the blood type of the infant. It is type O. Because the father is type A and the mother type B, they conclude that a mixup has definitely occurred. Are they correct? Give reason for your answer.
Choose the correct answer:
Chromosomes identical in male and female are called __________
In which livings, female decides the sex? Give two examples.
Write a short note on sex determination in man.
Give Technical Term:
The cell which determines the sex of a baby.
Complete the following sentence with appropriate word:
___________ chromosomes do not take part in sex determination.
Explain the mechanism of sex determination in humans with a suitable chart.
Distinguish between heterogametic and homogametic sex determination systems.
Identify the organism in which ZZ-ZW type of sex determination is observed.
The ‘X’ body of Henking was observed in ______.
In human males all the chromosomes are paired perfectly except one. This/these unpaired chromosomes is/are ______.
- large chromosome
- small chromosome
- Y-chromosome
- X-chromosome
A zygote which has an X-chromosome inherited from the father will develop into a ______.
A man with blood group A marries a woman having blood group O. What will be the blood group of the child?
Which of the following determines the sex of a child?
A trait in an organism is influenced by
In humans, males are heterogametic and females are homogametic. Explain. Are there any examples where males are homogametic and females heterogametic?
The sex chromosome in a human ovum is ______.
