Biology questions
20584 published questions with worked solutions.
- An abnormal human male phenotype involving an extra X chromosome (XXY) is a case of [CBSE PMT 1995, CPMT 1996, MP PMT 1997, MP...
- Sometimes chromosome number increases or decreases due to [AFMC 1996]
- Turner's syndrome is an example of [Kerala PMT 2004]
- Turner's syndrome in human is caused by [CPMT 1990]
- Number of sex chromosomes is normal in [MP PMT 1992]
- A man having Klinefelter's syndrome is [J & K CET 2005, MP PMT 2005]
- The number of chromosomes in Turner's syndrome is
- A person who is trisomic for twenty first pair of chromosomes is [BHU 1990, CPMT 1993, DPMT 2000, MP PMT 1993, WB-JEE 1993,...
- Genotype of Down's syndrome is
- A person who has 47 chromosomes due to an extra X chromosome is affected by [CPMT 1995]
- The genotype of a boy having sexual characters of a girl is
- Which pair of chromosomes is concerned with Down's syndrome?
- Who reported that Down's syndrome is due to extra 21st chromosome? [BVP 2000]
- A colour blind man marries the daughter of a colour blind person. Then, in their progeny [AIIMS 1983, CBSE PMT 1992, MP PMT 1988,...
- Haemophilic man marries a normal woman. Their offsprings will be [MP PMT 1993, CBSE PMT 1997, CPMT 1999, Haryana PMT 1999,...
- Condition of sex chromosomes in a male child of Down's syndrome will be
- Exchange of chromosome segments between maternal and paternal chromatids during synapsis in meiosis is called [CPMT 1976]
- Maize has 10 pairs, i.e. 20 chromosomes. How many linkage groups should it possess?
- What would be the number of chromosomes in the ovum (fertilized by a normal sperm) that resulted in the appearance of...
- In ZW – ZZ type of sex determination