Directions: In the following questions a statement of assertion is followed by a statement of reason. Mark the correct choice as:
Assertion : In human male, testes are extra-abdominal and lie in scrotal sacs.
Reason : Scrotum acts as thermoregulator and keeps testicular temperature lower by 2°C normal spermatogenesis.
Directions: In the following questions a statement of assertion is followed by a statement of reason. Mark the correct choice as:
Assertion : Asexual reproduction is also called blastogenesis.
Reason : In asexual reproduction, there is no fusion of gametes.
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Directions: In the following questions a statement of assertion is followed by a statement of reason. Mark the correct choice as:
Assertion : Urethra in human male acts as urinogenital canal.
Reason : Urethra carries only urine while sperms are carried by vasa deferentia only.
Directions: In the following questions a statement of assertion is followed by a statement of reason. Mark the correct choice as:
Assertion : Sexual reproduction is advantageous than asexual reproduction.
Reason : It is rapid mode of reproduction while asexual reproduction is slow mode of reproduction.
Directions: In the following questions a statement of assertion is followed by a statement of reason. Mark the correct choice as:
Assertion : Penis of male is homologous to clitoris of human female.
Reason : Both are highly sensitive and both supported by corpora cavernosa.
Directions: In the following questions a statement of assertion is followed by a statement of reason. Mark the correct choice as:
Assertion : Fallopian funnel of oviduct is with finger-like fimbriae.
Reason : Graafian follicle of the ovary is with a secondary oocyte hanging in the cavity called the antrum.
Directions: In the following questions a statement of assertion is followed by a statement of reason. Mark the correct choice as:
Assertion : At puberty, human male develop secondary sexual characters.
Reason : At puberty, there is decreased secretion of testosterone in male.
Directions: In the following questions a statement of assertion is followed by a statement of reason. Mark the correct choice as:
Assertion : Size of breasts increases at puberty in human females.
Reason : Prolactin secretion starts at puberty.
Directions: In the following questions a statement of assertion is followed by a statement of reason. Mark the correct choice as:
Assertion : Vagina acts as copulation canal and fertilization canal.
Reason : Both insemination and fusion of gametes occur in vagina of females.
Directions: In the following questions a statement of assertion is followed by a statement of reason. Mark the correct choice as:
Assertion : Primary spermatocytes of testes are haploid.
Reason : Primary spermatocytes are formed by meiosis-I in the spermatogonia.