Browse and search thousands of solved questions for your preparation.
Free questions with full explanations — locked behind signup to protect quality.
Which of the following is not an objective of Biofortification in crops?
Artificial insemination means:
During muscular contraction which of the following events occur? (a) 'H' zone disappears (b) 'A' band widens (c) 'I' band reduces in width (d) Myosine hydrolyzes ATP, releasing the ADP and Pi. (e) Z-lines attached to actins are pulled inwards. Choose the correct answer from the options given below:
Select the incorrect match regarding the symbols used in Pedigree analysis:
Which of the following statements are correct with respect to the hormone and its function? A: Thyrocalcitonin (TCT) regulates the blood calcium level B: In males, FSH and androgens regulate spermatogenesis C: Hyperthyroidism can lead to goitre D: Glucocorticoids are secreted in Adrenal Medulla E: Parathyroid hormone is regulated by circulated levels of sodium ions
Match the Assisted Reproductive Technologies (ARTs) with their correct descriptions: I. Collected gametes are made to form the zygote in the laboratory. II. Zygote or early embryo with upto 8 blastomeres is transferred into the oviduct. III. Zygote with more than 8 blastomeres is transferred into the uterus. IV. Fusion of gametes within the female. V. Transfer of ovum from a donor to the oviduct of the recipient. VI. Sperm is injected into the ovum in-vitro.
Following are the statements with reference to 'lipids'. (a) Lipids having only single bonds are called unsaturated fatty acids (b) Lecithin is a phospholipid. (c) Trihydroxy propane is glycerol. (d) Palmitic acid has 20 carbon atoms including carboxyl carbon. (e) Arachidonic acid has 16 carbon atoms. Choose the correct answer from the options given below.
Concanavalin A is
A normal girl, whose mother is haemophilic marries a male with no ancestral history of haemophilia. What will be the possible phenotypes of the offsprings?
Radial symmetry is found in the flowers of?
Family Fabaceae differs from Solanaceae and Liliaceae. With respect to the stamens, pick out the characteristics specific to family Fabaceae but not found in Solanaceae or Liliaceae.
Which one of the following conditions of the zygotic cell would lead to the birth of a normal human female child?
Match List-I with List-II. List-I A. F1 Particles B. Histones C. Axoneme D. Cisternae List-II I. Chromosomes II. Cilia III. Golgi apparatus IV. Mitochondria
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
Match List-I with List-II: List-I (Events) A. Chromosomes start pairing together to form synaptonemal complex B. Chromosomes visible under light microscope and compaction continues C. Four chromatids of bivalent chromosomes become distinct and recombinant nodules appear D. Dissolution of synaptonemal complex List-II (Prophase-I) I. Pachytene II. Zygotene III. Diplotene IV. Leptotene
In the seeds of cereals, the outer covering of endosperm separates the embryo by a protein-rich layer called:
Match Column-I with Column-II: Column-I (a) Smooth muscle (b) Tropomyosin (c) Red muscle (d) Skull Column-II (i) Myoglobin (ii) Thin filament (iii) Sutures (iv) Involuntary
Identify the contraceptive methods A, B, C, D, and E from the list below (corresponding to standard NCERT diagrams): I. Tubectomy II. Vasectomy III. Implants IV. Condoms V. Copper T VI. Cervical caps
Given below are two statements: Statement I: During G0 phase of cell cycle, the cell is metabolically inactive. Statement II: The centrosome undergoes duplication during S phase of interphase. In the light of the above statements, choose the most appropriate answer from the options given below:
Which of the following is the example of a sex-linked disease: