Biology questions
20584 published questions with worked solutions.
- Which of the following condition is called monosomic?
- Chromosome is made up of
- Both husband and wife have normal vision, through their fathers were colorblind and mothers did not have any gene for color...
- Pick out the correct statements. 1. Haemophilia is a sex-linked recessive disease. 2. Down's syndrome is due to aneuploidy. 3....
- A woman has a haemophilic son and three normal children. Her genotype and that of her husband with respect to this gene would be
- Which one of the following condition in humans is correctly matched with its chromosomal abnormality/linkage?
- Which of the following abnormalities results from an unnatural presence of a Barr body?
- Phenylketonuria, Huntington's disease and Sickle-cell anaemia are caused due to the disorder associated with
- In human beings, 45 chromosomes/single X/XO abnormality causes
- Down's syndrome is an example of
- X-chromosomes of female, in case of sex-linked inheritance, can be passed on to
- Paternal baldness, moustaches and beard in human males are examples of
- In which of the following, there is no defect in the sex chromosome?
- Match the following columns. Column I: A. Multiple alleles; B. Epistasis; C. Crossing over; D. Color blindness Column II: 1....
- In Mirabilis jalapa, when red and white varieties are crossed, the hybrid obtained will be _______ pink. [MHTCET 2023]
- Snapdragon is an example of _______ gene. [MHTCET 2023]
- In a dihybrid cross with contrasting characters, the number of different genotypes obtained in F_2-generation is [MHTCET 2023]
- Mendel obtained pure-lines by selfing yellow round seeds as female parent and green wrinkled as male parent for _______...
- An extra sex chromosome is present in ________. [MHTCET 2023]
- The number of phenotype recombinant offspring formed during F_2-generation of a dihybrid cross are [MHTCET 2023]