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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
Differentiate between male and female heterogamety
Explain the mechanism of 'sex determination' in birds. How does it differ from that of human beings?
A new born child has an XY pair of chromosmes. Will it be a baby boy or a baby girl?
Fill in the following blank with suitable word :
The...............chromosomes for a ............are XX whereas that for a ..............are XY.
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?
Define the following:
Sex chromosomes
Choose the correct answer :
Human sex chromosomes are __________
Choose the correct answer:
A man can transfer his sex-linked gene to his ______________
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 ____________.
Explain the mode of sex determination in honeybees.
Read the following statements and select the correct option.
i. If sperm containing Y chromosome fertilizes the ovum, then diploid zygote is formed that grows into a male child.
ii. If sperm containing X chromosome fertilizes ovum, then diploid zygote is formed, that grows into a female child.
The ‘X’ body of Henking was observed in ______.
Which of the following combination of chromosome numbers represents the correct sex determination pattern in honey bees?
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
The maleness of a child is determined by ______
If a normal cell of the human body contains 46 pairs of chromosomes then the numbers of chromosomes in a sex cell of a human being is most likely to be ______
Female heterogamy is shown by
How many types of gametes are produced by a human female?
