Browse and search thousands of solved questions for your preparation.
Free questions with full explanations — locked behind signup to protect quality.
A common test to find the genotype of a hybrid is by:
Which of the following is not a stem modification?
Consider the statements given below regarding contraception and answer as directed thereafter: (i) Medical Termination of Pregnancy (MTP) during first trimester is generally safe. (ii) Generally, chances of conception are nil until mother breast-feeds the infants upto two years. (iii) Intrauterine devices like copper-T are effective contraceptives. (iv) Contraception pills may be taken up to one week after coitus to prevent conception. Which two of the above statements are correct?
Match Column-I with Column-II Column-I (a) Chlamydomonas (b) Cycas (c) Selaginella (d) Sphagnum Column-II (i) Moss (ii) Pteridophyte (iii) Algae (iv) Gymnosperm
Given below are two statements: Statement I: Mendel studied seven pairs of contrasting traits in pea plants and proposed the Laws of Inheritance. Statement II: Seven characters examined by Mendel in his experiment on pea plants were seed shape and colour, flower colour, pod shape and colour, flower position and stem height. In the light of the above statements, choose the correct answer from the options given below:
Serum differs from blood plasma in:
Which one of the following is not true regarding the release of energy during ATP synthesis through chemiosmosis? It involves:
Medical Termination of Pregnancy (MTP) is considered safe up to how many weeks of pregnancy?
Anemophilly type of pollination is found in:
Match the following columns and select the correct option: Column I: (A) Man, (B) Mango, (C) Tiger, (D) Wheat Column II: (i) Order–Carnivora, (ii) Family–Poaceae, (iii) Genus–Musca, (iv) Phylum–Chordata, (v) Family–Anacardiaceae
Match the trophic levels with their correct species examples in grassland ecosystem. (a) Fourth trophic level (i) Crow (b) Second trophic level (ii) Vulture (c) First trophic level (iii) Rabbit (d) Third trophic level (iv) Grass Select the correct option
Winged pollen grains are present in:
Pollen grains can be stored for several years in liquid nitrogen having a temperature of:
The name of the joint between the ribs and sternum is:
F2 generation in a Mendelian cross showed that both genotypic and phenotypic ratios are same as 1:2:1. It represents a case of:
Condoms are barriers that cover:
In Angiosperms, pollen tubes liberate their male gametes into the:
The test-tube baby programme employs which one of the following techniques?
Identify the step in tricarboxylic acid cycle, which does not involve oxidation of substrate?
The human hindbrain comprises three parts, one of which is: