Question 3 :
The success of birth control programmes in controlling population growth is dependent on

Question 5 :
<p>Embryologist can draw the fate maps of future organ of embryo in</p>

Question 7 :
<p>The loss of forests, urbanization and increasing pollution due to: </p>

Question 8 :
<p>In which one pair, both the plants can be vegetatively propagated by leaf pieces?</p>

Question 13 :
Generally how many megaspores take part in the development of female gametophyte

Question 18 :
An organic substance that can withstand environmental extremes and cannot be degraded by any enzyme is:

Question 23 :
<table><tr><td>Column I</td><td>Column II</td></tr><tr><td>I. Proliferative phase </td><td>(a) Testosterone </td></tr><tr><td>II. Leydig's cell </td><td>(b) Estrogen </td></tr><tr><td>III. Spermiogenesis </td><td>(c) Progesterone </td></tr><tr><td>IV. Secretory phase </td><td>(d) Spermatid </td></tr></table>

Question 30 :
<p>Which of the following is a mechanical barrier used in birth control:</p>

Question 31 :
In humans, male germs cells differentiate into _____ at the end of first meiotic division.

Question 32 :
<p>An interesting modification of flower shape for insect pollination occurs in some orchids in which a male insect mistakes the pattern on the orchid flower for the female of his species and tries to copulate with it, thereby pollinating the flower. This phenomenon is called </p>

Question 33 :
<p>Oral contraceptives inhibits …A… and implantation as the well as quality of cervical …B…. to prevent the entry of sperms.</p><p>Choose the correct option for A and B to complete the given statement </p>

Question 37 :
A typical angiospermous ovule is attached to the placenta by means of a stalk called X. Body of the ovule fuses with X in the region called Y. Identify X and Y.

Question 40 :
In humans, at the end of the first meiotic division, the male germ cells differentiate into the

Question 42 :
<p>…A… completely surrounds the embryo and protect it. It also take part in formation of ….B… .</p><p>A and B here refers to</p>

Question 46 :
<p>In the angiosperm ovule, central cell of the embryo sac, prior to the entry of pollen tube, contains</p>

Question 47 :
The study of formation, growth and development of new individual from an egg is called

Question 52 :
In the following diagram of a portion of a seminiferous tubule identify the marked alphabets.<br><img style='object-fit:contain' src='https://storage.googleapis.com/teachmint/question_assets/NEET/5e6dc0bace79d451e7469b5e' height='264' width='298' >

Question 53 :
The secretory phase in the human menstrual cycle is also called

Question 54 :
Select the correct statements regarding oogenesis. <br>(i) It is initiated during the embryonic development stage when millions of oogonia are formed within each ovary. <br>(ii) Graafian follicle releases primary oocyte from the ovary by ovulation. <br>(iii) At puberty only 60,000 – 80,000 primary follicles are left in each ovary. <br>(iv) Secondary oocyte within tertiary follicles grows in size and completes its second meiotic division.

Question 55 :
<b>Assertion</b> : Interstitial cell is present in the region outside the seminiferous tubule called interstitial spaces. <br><b>Reason</b> : Interstitial cells provide nutrition to the sertoli cells.

Question 59 :
In the given columns, column-I contain various phases of menstrual cycle and column -II contain its features. Select the correct match from the options given below. <table><tr><td>Column-I(Phases of menstrual cycle)</td><td>Column-II (Features)</td></tr> <tr><td>A. Menstrual phase</td><td>I. Breakdown of endometrial lining of uterus along with its blood vessels which form liquid that comes out of vagina.</td></tr> <tr><td>B. Luteal phase</td><td>II. A temporary endocrine gland is formed and secretes a hormone which maintains endometrium and implantation of fertilized ovum and other events of pregnancy.</td></tr> <tr><td>C. Follicular phase</td><td>III. Secretion of luteinizing hormone at its maximum level and induces breakdown of mature follicle to release the female gamete</td></tr> <tr><td>D. Ovulatory phase</td><td>IV. Formation of mature Graafian follicle and regeneration of endometrium of uterus.</td></tr></table>

Question 62 :
In a seed of maize, scutellum is considered as cotyledon because it

Question 66 :
Assertion (A): maize is an albuminous seed.<br />Reason (R): its endosperm is completely absorbed by its growing embryo.

Question 67 :
Milk secreted from the cells of alveoli of mammary lobes reaches nipple through lactiferous duct(L), mammary duct (M), mammary tubule (T) and mammary ampulla (A) in the following order.

Question 68 :
An irregular mode of reproduction resulting in the development of an embryo without fertilisation is called<br>I. parthenogenesis<br>II. apogamy<br>III. sporophytic budding<br>Select the correct answer using the code given below.

Question 70 :
Immediately after implantation, the inner cell mass differentiate into: <br>A. Ectoderm <br>B. Mesoderm <br>C. Myometrium <br>D. Endoderm

Question 71 :
Which part of the male reproductive system is the place where sperm complete the maturation process?

Question 72 :
<table><tr><td>Column I</td><td>Column II</td></tr><tr><td>I. Urethra </td><td>(a) Interstitial cells </td></tr><tr><td>II. Androgen/ Testosterone </td><td>(b) Corpus luteum </td></tr><tr><td>III. Lutein cells and sperms </td><td>(c) Passage for urine </td></tr><tr><td>IV. Ovary </td><td>(d) Oogenesis</td></tr></table>

Question 73 :
Match the column-I with column-II and select the correct option. Match from the options given below <table> <tbody> <tr> <td>Column-I</td> <td>Column-II</td> </tr> <tr> <td>A. Primary oocyte&nbsp;</td> <td>&nbsp;I. It is formed when oogonia starts division and temporarily arrested at prophase of meiosis I.</td> </tr> <tr> <td>B. Secondary oocyte</td> <td>II. A large haploid cell which retains bulk of nutrient rich cytoplasm of the primary oocyte.</td> </tr> <tr> <td>C. Primary follicle</td> <td>III. A large number of these degenerate during the phase from puberty to birth.</td> </tr> <tr> <td>D. Oogonia</td> <td>IV. Gamete mother cell.</td> </tr> <tr> <td>E. Secondary follicle</td> <td>V. Surrounded by more layers of granulosa cells and a new theca.</td> </tr> <tr> <td>F. Graafian follicle</td> <td>VI. Rupture to release ovum from the ovary.</td> </tr> </tbody> </table>

Question 74 :
Pseudopregnancy is a physiological condition comparable to normal pregnancy except that there is no

Question 75 :
<p>If a germ cell in a female gonad and a germ cell in a male gonad begin undergoing meiosis simultaneously, what will be the ratio of ova and sperm produced?</p>

Question 76 :
Assertion : In honey bee, life history shows natural and complete parthenogenesis.<br>Reason : In honey bee, both drones and workers are parthenogenetically developed.

Question 77 :
Assertion (A): Clones are produced by sexual reproduction.<br />Reason (R): these are prepared by group of cells descended any cells or by inbreeding of a heterozygous line.

Question 83 :
<p>The plant part which consists of two generations one within the other, is </p>

Question 84 :
Choose the correct statements – <br>(i) According to the WHO, reproductive health is total well-being in the physical, social, emotional, behavioural aspects of reproduction. <br>(ii) According to the WHO, reproductive health is total well being in the physical, social and emotional aspects of reproduction. <br>(iii) A reproductively healthy society has people with physically and functionally normal reproductive organs. <br>(iv) Reproductively healthy societies have abnormal sexrelated emotional and behavioural interactions.

Question 86 :
How many microspore mother cells will give rise to 256 microspores after reduction division

Question 88 :
Assertion : The embryo sac is 7-celled, 7-nucleated structure.<br>Reason : All cells are haploid.

Question 93 :
Assertion: In a regular medical examination of a small population, a 35 years old lady was found to have higher levels of oestrogens,progesterone in her blood.<br> Reason: The lady is 12 weeks pregnant.

Question 95 :
The epidermis of the skin is derived from the germinal layer

Question 98 :
<p>Which one of the following is a reference to xenogamy ?</p>

Question 99 :
Starting from the maximum, arrange the following male reproductive accessory organs in the correct order, based on the amount of secretion poured into urethra.<br>(i) Prostate gland<br> (ii) Seminal vesicle<br>(iii) Bulbourethral gland

Question 100 :
Which of the following contains a fluid filled cavity called antrum?