Fill in the blanks
(i) The intine is made of ___________ and ___________
(ii) There are ________ meotic division (s) and _________mitotic divisions required to form two male gametes from a PMC
(iii) __________is the most resistant organic material known on earth associtated with pollen

Fill in the blanks : (i) Glycogen is the main reserve food material of _______ cells. It is known as the ______ . (ii) Starch is the reserve food material of ______ cells. It has two components : amylose and _______ . (iii) Some important heteropolysaccharides include hyaluronic acid, heparin, chondroitin sulphate etc. which are together grouped as _______ . (iv) _________ of connective tissue, actin and myosin of muscles and ______ of scales, feathers, hairs etc. are fibrous proteins. (v) DNA has ______ and ________ (double-ringed purines) and _______ and _______ (single-ringed pyrimidines). (vi) There are three major types of RNA in every cell : m- RNA, ______ and _____ .

Slect the option that correctly fills up the blanks in the given paragraphs After one month of pregnancy the embryo's (i)._____is formed By the end of the (ii)._____month of pregnancy the fetus develops limbs and digits. By the end of (iii)._____most of the major organ systems are formed, for example, the limb and external genital organs are well-developed by the end of (iv)._____the body is covered with fine hair, eye-lids separate, and eyelashed are formed

Slect the option that correctly fills up the blanks in the given paragraphs After one month of pregnancy the embryo's (i)._____is formed By the end of the (ii)._____month of pregnancy the fetus develops limbs and digits. By the end of (iii)._____most of the major organ systems are formed, for example, the limb and external genital organs are well-developed by the end of (iv)._____the body is covered with fine hair, eye-lids separate, and eyelashed are formed

Some statements are given below each with one or two blanks. Select the option that correctly fills up the blanks. (i) High concentration of DDT disturbs ____ in birds, which causes ____. (ii) ____ burns more efficiently as compared to petrol and diesel. (iii) ___ is the natural ageing of a lake which occurs due to accumulation of ____. (iv) ______ reduces the number of organisms which are sensitive to high temperature. (v) Irreparable computers and other electronic goods are known as ____.

Some statements are given below each with one or two blanks. Select the option that correctly fills up the blanks. (i) High concentration of DDT disturbs ____ in birds, which causes ____. (ii) ____ burns more efficiently as compared to petrol and diesel. (iii) ___ is the natural ageing of a lake which occurs due to accumulation of ____. (iv) ______ reduces the number of organisms which are sensitive to high temperature. (v) Irreparable computers and other electronic goods are known as ____.

Given below are four statement (A-D) each with one of two blanks .Select the option which correctly fill up the blanks in two statements A The human male ejaculates about (i) million sperms during a cooitus . Out of which for normal fertility at teast (iii) percent sperms must have normal shape and size B. A primary spermatocyte completes (i) meiotic division leading to the formation of two equal haploid cells called (i) C. Spermatogenesis starts at the age of (i) due to significant increase in the secretion of (ii) a hypothalamic hormone D. Oogenesisi is initiated during embryonic development and at puberty only (i) primary follicles are left in each overy

Given below are four statement (A-D) each with one of two blanks .Select the option which correctly fill up the blanks in two statements A The human male ejaculates about (i) million sperms during a cooitus . Out of which for normal fertility at teast (iii) percent sperms must have normal shape and size B. A primary spermatocyte completes (i) meiotic division leading to the formation of two equal haploid cells called (i) C. Spermatogenesis starts at the age of (i) due to significant increase in the secretion of (ii) a hypothalamic hormone D. Oogenesisi is initiated during embryonic development and at puberty only (i) primary follicles are left in each overy

Fill in the blanks with suitable word: (i)_______Gave the aphorism ''omnis cellula e cellula." (ii) G_1 phase is followed by _____phase. (iii)Cell division that occurs without the formation of spindle is called_____ (iv)Anastral mitosis occurs in______ (v)Metaphase plate is formed by_____ (vi)A chromosome with equal arms is called_____ (vii)____is the failure of the two sister chromatids to separate in mitosis. (viii)pairing of homologous chromosomes is called____ (ix)The cell that undergo meiosis are called___ (x)______ occurs in all kinds of cells.

Read the following statements. (i) In mitotic cell division chromosome number is halved. (ii) Centromere is the point where two sister chromatids are held together. (iii) The period between two successive mitotic divisions is known as telophase. (iv) In G_(1) phase of cell cycle protein and RNA are synthesised. Which of the above given statements are correct?

Read the following statements. (i) In mitotic cell division chromosome number is halved. (ii) Centromere is the point where two sister chromatids are held together. (iii) The period between two successive mitotic divisions is known as telophase. (iv) In G_(1) phase of cell cycle protein and RNA are synthesised. Which of the above given statements are correct?