CBSE
Multiple Choice QuestionsDuring entry into the ovum, acrosome of sperm releases
hyaluronidase
alkaline phosphorylase
acid phosphatase
carbonic anhydrase
Where does hyaline cartilage occur in an embryo?
Entire skeleton of the embryo
surface of bones at joints
pinna of the outer ear and in epiglottis
intervertebral discs of the spinal column
Indicate the correct sequence during spermatogenesis.
Spermatozoa spermatogonia spermatid spermatocyte
Spermatogonia spermatocyte spermatid spermatozoa
Spermatid spermatocyte spermatozoa spermatogonia
Spermatocyte spermatozoa spermatid spermatogonia
Egg in female gametophyte is accompanied by
antipodal cells
synergids
definitive nucleus
tube nucleus
Cryptorchidism in males is
male sterility due to prostate
enlargement of prostate gland
inguinal hernea
hidden testis
Study the following with regard to spermatogenesis.
I. Spermatogonia
II. Secondary spermatocyte
III. Spermatogonial stem cells
IV. Primary spermatocyte
V. Spermatid
Arrange them in the correct sequence.
III, IV, II, I, V
III, I, IV, II, V
I, II, III, IV, V
III, IV, I, II, V
Menstrual cycle is the cyclic changes in the reproductive tract of primate females. Given below are some statements related with menstrual cycle.
I. Oestrogen is the hormone active during proliferative phase.
II. The uterine endometrium and glands grow further during secretory phase.
III. At the end of proliferative phase, corpus luteum degenerates in the ovary.
IV. The cycle ends with the menstrual phase, when menstrual flow occurs and lasts for 3-5 days.
Choose the correct option.
I, II and III
II, III and IV
I and II
III and IV
The phase involved in the process of spermateliosis is
Multiplication phase
Growth phase
Maturation phase
Differentiation phase
Which one of the following hormones is responsible for uterine contraction during parturition?
Relaxin
Vasopressin
Oxytocin
Prolactin
During fertilisation, zona pellucida is dissolved by
hyaluronidase
hyaluronic acid
renin
acrosin
