Biology questions
20584 published questions with worked solutions.
- A study of heredity and hereditary character is called as [CPMT 1978]
- The prokaryotic genetic system contains [NCERT 1976]
- The somatic chromosome complement in all human beings is [CPMT 1977, CPMT 1979]
- Number of autosomes in human sperm is
- Number of autosomes in a normal female is
- The theory of recombination of linked gene due to crossing over of chromosome during zygotene of meiosis was forwarded by [CPMT...
- The frequency of crossing-over occurring between two genes located on the same chromosome depends on [WB-JEE 2014]
- The pairing of bivalent synapsis occurs is [DPMT 1985]
- Which of the following statements is NOT true of two genes that show 50% recombination frequency? [NEET 2013]
- Drosophila melanogaster has 8 chromosomes in somatic cell. How many linkage groups will be there?
- When synapsis is complete all along the chromosome, the cell is said to have entered a stage called [AIIMS 2005]
- Person whose father is colourblind marries a lady whose mother is the daughter of a colourblind man. Their children will be [CPMT...
- In which of the following colourblindness is inherited? [MP PMT 2000]
- A man known to be a victim of haemophilia marries a normal woman whose father was known to be a bleeder. Then, it is expected...
- A colourblind daughter is born when [MP PMT 1998, CPMT 1991, Kerala CET 2002, Orissa JEE 2005]
- If a boy's father has haemophilia and his mother has one gene for haemophilia; what is the chance that the boy will inherit the...
- The most common type of haemophilia results from the congenital absence of [CPMT 2004, MP PMT 2007, WB-JEE 2008]
- Which one is a sex-linked disease? [CPMT 1971, DPMT 1974, BHU 1975, AFMC 1980, MH-CET 1985, MH-CET 1985, MH-CET 1996, MH-CET 2000]
- The incorrect statement with regard to Haemophilia is [NEET 2013]
- Colour blindness is found more in males than in females because [MP PMT 1992]