Question bank

Filter questions by subject, topic and difficulty. Open any question to answer it and see the explanation.

7,992 questions found Show 20 · 50 per page
#QuestionSubject and topicDifficulty
1461 Which of these is an albuminous seed? Biology/Biological Studies/Biotechnology/Biochemistry
Post-fertilisation events
Easy
1462 The tender coconut water and the white kernel of coconut respectively represent Biology/Biological Studies/Biotechnology/Biochemistry
Post-fertilisation events
Medium
1463 In a monocot embryo, the sheath that encloses the radicle and root cap is called the Biology/Biological Studies/Biotechnology/Biochemistry
Post-fertilisation events
Medium
1464 Apple is called a false fruit because Biology/Biological Studies/Biotechnology/Biochemistry
Post-fertilisation events
Hard
1465 Formation of seeds without fertilisation is called Biology/Biological Studies/Biotechnology/Biochemistry
Special modes
Easy
1466 Banana is a natural example of Biology/Biological Studies/Biotechnology/Biochemistry
Special modes
Easy
1467 Embryos formed from nucellar cells in Citrus are genetically Biology/Biological Studies/Biotechnology/Biochemistry
Special modes
Medium
1468 Why is the introduction of apomixis into hybrid crop varieties of great interest? Biology/Biological Studies/Biotechnology/Biochemistry
Special modes
Medium
1469 A farmer sprays a growth hormone on unpollinated flowers and obtains seedless fruits. A seed contains three e… Biology/Biological Studies/Biotechnology/Biochemistry
Special modes
Hard
1470 Which cells of the testis secrete androgens? Biology/Biological Studies/Biotechnology/Biochemistry
Male and female reproductive systems
Easy
1471 Which layer of the uterus undergoes cyclic changes during the menstrual cycle? Biology/Biological Studies/Biotechnology/Biochemistry
Male and female reproductive systems
Easy
1472 Why are the testes located in the scrotum outside the abdominal cavity? Biology/Biological Studies/Biotechnology/Biochemistry
Male and female reproductive systems
Medium
1473 Which is the correct sequence of the path taken by sperm? Biology/Biological Studies/Biotechnology/Biochemistry
Male and female reproductive systems
Medium
1474 A man's seminiferous tubules contain plenty of germ cells but sperm fail to mature properly because the cells… Biology/Biological Studies/Biotechnology/Biochemistry
Male and female reproductive systems
Hard
1475 The transformation of spermatids into spermatozoa is called Biology/Biological Studies/Biotechnology/Biochemistry
Gametogenesis
Easy
1476 Which part of the sperm contains enzymes that help it penetrate the ovum? Biology/Biological Studies/Biotechnology/Biochemistry
Gametogenesis
Easy
1477 At the time of ovulation in humans, the cell released from the Graafian follicle is a Biology/Biological Studies/Biotechnology/Biochemistry
Gametogenesis
Medium
1478 How many sperm and how many ova are formed from 50 primary spermatocytes and 50 primary oocytes respectively? Biology/Biological Studies/Biotechnology/Biochemistry
Gametogenesis
Medium
1479 In spermatogenesis, which hormone acts on Sertoli cells, and which acts on Leydig cells? Biology/Biological Studies/Biotechnology/Biochemistry
Gametogenesis
Hard
1480 Which event directly triggers ovulation? Biology/Biological Studies/Biotechnology/Biochemistry
Menstrual cycle
Easy