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Variations caused by mutation, as proposed by Hugo de Vries are
In a cereal grain, the single cotyledon of the embryo is represented by:
In water hyacinth and water lily, pollination takes place by :
Menstrual flow occurs due to the lack of:
The number of substrate level phosphorylations in one turn of citric acid cycle is
How many pairs of contrasting characters in pea plants were studied by Mendel in his experiments?
Match the following Column-I with Column-II: Column-I A. Synapsis aligns homologous chromosomes B. Synthesis of RNA and protein C. Action of enzyme recombinase D. Centromeres do not separate, but chromosomes move towards opposite poles Column-II (i) Pachytene (ii) Zygotene (iii) G2-phase (iv) Anaphase I
A dioecious flowering plant prevents both:
MTP was legalised in India in:
Which of the following algae produce Carrageen?
Natural methods for contraception work on the principle of:
If a female having gene for haemophilia and colour-blindness on one X-chromosome marries a normal male, then what are the chances in their offspring?
To ensure that only the desired pollens fall on the stigma in artificial hybridization process: a: the female flower buds of plant producing unisexual flower need not be bagged. b: there is no need to emasculate unisexual flowers of selected female parent. c: emasculated flowers are to be bagged immediately after cross pollination. d: emasculated flowers are to be bagged after removal of anthers. e: bisexual flowers, showing protogyny are never selected for cross. Choose the correct answer from the options given below:
Which of the following statements is not correct?
Flippers of Penguins and Dolphins are examples of
Which of the following statement is not correct regarding a rhizome?
The flowers are Zygomorphic in: (a) Mustard (b) Gulmohur (c) Cassia (d) Datura (e) Chilli Choose the correct answer from the options given below:
Given below are two statements: One is labelled as Assertion (A) and the other is labelled as Reason (R): Assertion (A): ATP is used at two steps in glycolysis. Reason (R): First ATP is used in converting glucose into glucose-6-phosphate and second ATP is used in conversion of fructose-6-phosphate into fructose-1-6-diphosphate. In the light of the above statements, choose the correct answer from the options given below:
Which of the following pairs is correctly matched regarding the Electron Transport System (ETS) complexes?
Which one of the following growth regulators is known as the stress hormone?