Observe the relationship between first two words and suggest suitable word for the fourth one
(i) Ovary:Mesovarium:: Uterus: A
(ii) Male: Penis :: Female :B
(iii) Male gametes: Sperms::Female gametes: C

Note the relationship between first two words and suggest suitable word/words for A, B and C, respectively. (i) Interstitial cells: Testosterone :: Graafian follicle cells: A (ii) LH-surge: Ovulation :: Oxytocin : B (iii) Mammary glands : Lactation :: Uterus:C

Read the following questions carefully and suggest a suitable word. (i) Small sacs that form a part of female reproductive system and store spermatozoa received from the male for use in future. (ii) Small tubes lying on either sides of uterus near the kidney and carry the egg from the ovary to the uterus. (iii) The small erectile organ in females, which lies above the urethral opening and is homologous of glans penis of males.

Read the following statements and select the option having both incorrect statements (i) Condoms decrease sperm motility (ii) Diaphragms, cervical caps and vaults are for both males and females (iii) IUDs are inserted by expert nurses (iv) Sterilisation is a terminal method to prevent further pregnancy.

Double fertilisation in an angiosperms plant means (a) fusion of two egg cells with two male gametes (b) fusion of egg cell twice with male gametes (c) fusion of one male gamete with the egg cell and the other male gamete with the synergid (d) fusion of one male gamete with the egg cell and the other male gamete with secondary nucleus

Which of the following statements are correct regarding surgical methods of contraception ? (i) These are generally advised to the male/female partner as a terminal method to prevent any more pregnancies (ii) Surgical procedure in male is called tubectomy and that in the female, vasectomy (iii) Reversibility is easily possible (iv) They block gamete transport and thereby prevent conception.

Refer to the following figures regarding division bryophyta. (i). 'A' are the androcyte mother cells of the antheridium, which give rise to a large number of biflagellate male gametes. (ii). 'B' is the autheridial chamber and 'C' is multicellular stalk of antheridium. (iii). 'D' and 'E' respectively represents venter canal cells and neck canal cell of the femal sex organ. (iv). 'F' is the egg cell of the archegonium, which usually possesses severatl female gameters. Which of the following combinations of above statements is incorrect?

Which two of the following statements are incorrect regarding in vitro fertilisation ? (i) In this method, ova from the wife/donor female and sperms from the husband/donor male are induced to form zygote in the uterus (ii) If the embryo is having 2 blastomeres, it is transferred into the uterus (iii) If the embryo is with more than 8 blastomeres, it is transferred into the uterus. (iv) The baby thus produced is called test tube baby.

Fill in the blanks in the following statements by selecting the correct option. (i) All hybrids of poultry are produced by ______ inbred stocks. (ii) Super hybrids are obtained when genetically______ parents are used in the cross. (iii) A_______ is produced from a cross between female horse (mare) and male donkey.