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Consider the two surgical procedures (A and B) given below and choose the correct statement:
A certain plant homozygous for yellow seeds and red flowers was crossed with a plant homozygous for green seeds and white flowers. The F1 plants had yellow seeds and pink flowers. The F1 plants were selfed to get F2 progeny. Assuming independent assortment of the two characters, how many phenotypic categories are expected for these characters in the F2 generation?
Match List-I with List-II List-I (Taxonomic Category) (A) Family (B) Order (C) Class (D) Division List-II (Example) (i) Polymoniales (ii) Solanaceae (iii) Angiospermae (iv) Dicotyledonae
What is true for IUDs? I: They are self-inserted II: They are inserted by expert nurses III: They may be non-medicated IUDs, copper releasing IUDs or hormone releasing IUDs. IV: They are the one of the most widely accepted contraceptives in India. V: They are inter-uterine devices
Functional megaspore in an angiosperm develops into:
In Mendel's experiments with garden peas, round seed shape (RR) was dominant over wrinkled seeds (rr), and yellow cotyledon (YY) was dominant over green cotyledon (yy). What are the expected phenotypes in the F2 generation of the cross RRYY x rryy?
Double fertilization is:
Diadelphous is found in
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: One is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): In honey bee population, sons do not have fathers but have grandfathers. Reason (R): Haploidy in drones of honey bee is due to parthenogenesis while fertilisation results into female bees. In the light of the above statements, choose the correct answer from the options given below:
Match List - I with List - II List - I (Type of flower) (A) Zygomorphic (B) Hypogynous (C) Perigynous (D) Epigynous List - II (Example) (I) Mustard (II) Plum (III) Cassia (IV) Cucumber
How many true breeding pea plant varieties did Mendel select as pairs, which were similar except in one character with contrasting traits?
Which of the following pairs is of unicellular algae?
The flowers are Zygomorphic in: (a) Mustard (b) Gulmohur (c) Cassia (d) Datura (e) Chilli Choose the correct answer from the options given below:
Identify the wrong statement with reference to the gene 'I' that controls ABO blood groups.
Identify the correct set of statements: (a) The leaflets are modified into pointed hard thorns in Citrus and Bougainvillea. (b) Axillary buds form slender and spirally coiled tendrils in Cucumber and Pumpkin. (c) Stem is flattened and fleshy in Opuntia and modified to perform the function of leaves. (d) Rhizophora shows vertically upward growing roots that help to get oxygen for respiration. (e) Subaerially growing stems in grasses and strawberry help in vegetative propagation.
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:
In glycolysis, the conversion of 1, 3-bisphosphoglyceric acid to 3-phosphoglyceric acid is:
Identify the correct statements related to the androecium in the flower: (a) Sterile stamens are called staminodes. (b) When stamens are attached to petals, they are called epipetalous. (c) Monoadelphous stamens are found in China rose. (d) Polyadelphous stamens are found in Pea. (e) Variation in the length of filaments is seen in Salvia and Mustard.
The chromosomal theory of inheritance was proposed by: