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Q. No.Which of the following hormone levels will cause release of ovum (ovulation) from the graffian follicle?
1. High concentration of Progesterone
2. Low concentration of LH
3. Low concentration of FSH
4. High concentration of Estrogen
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyMatch the following columns and select the correct option.
| Column-I | Column-II | ||
| a. | Placenta | (i) | Androgens |
| b. | Zona pellucida | (ii) | Human chroinic Gonadotropin |
| c. | Bulbo-urethral glands | (iii) | Layer of the ovum |
| d. | Leydig cells | (iv) | Lubrication of the Penis |
| a | b | c | d | |
| 1. | (i) | (iv) | (ii) | (iii) |
| 2. | (iii) | (ii) | (iv) | (i) |
| 3. | (ii) | (iii) | (iv) | (i) |
| 4. | (ii) | (iv) | (i) | (ii) |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyMeiotic division of the secondary oocyte is completed:
1. At the time of copulation
2. After zygote formation
3. At the time of fusion of a sperm with an ovum
4. Prior to ovulation
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIn human beings, at the end of 12 weeks (first trimester) of pregnancy, the following is observed:
1. Eyelids and eyelashes are formed
2. Most of the major organ systems are formed
3. The head is covered with fine hair
4. Movement of the fetus
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologySelect the correct option of haploid cells from the following groups :
| 1. | Primary oocyte, Secondary oocyte, Spermatid |
| 2. | Secondary spermatocyte, First polar body, Ovum |
| 3. | Spermatogonia, Primary spermatocyte, Spermatid |
| 4. | Primary spermatocyte, Secondary spermatocyte, Second polar body |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyMatch the following columns and select the correct option:
| Column I | Column II | ||
| (a) | Ovary | (i) | Human chorionic Gonadotropin |
| (b) | Placenta | (ii) | Estrogen & Progesterone |
| (c) | Corpus luteum | (iii) | Androgens |
| (d) | Leydig cells | (iv) | Progesterone only |
| Options: | (a) | (b) | (c) | (d) |
| 1. | (iv) | (iii) | (ii) | (i) |
| 2. | (i) | (ii) | (iii) | (iv) |
| 3. | (i) | (iii) | (ii) | (iv) |
| 4. | (ii) | (i) | (iv) | (iii) |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyNo new follicles develop in the luteal phase of the menstrual cycle because :
| 1. | Follicles do not remain in the ovary after ovulation |
| 2. | FSH levels are high in the luteal phase |
| 3. | LH levels are high in the luteal phase |
| 4. | Both FSH and LH levels are low in the luteal phase |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIdentify the human development stage shown below as well as the related right place of its occurrence in a normal pregnant woman and select the right option for the two together -
| Developmental stage | Site of occurrence | |
| 1. | Blastula | End part of Fallopian tube |
| 2. | Blastocyst | Uterine wall |
| 3. | 8-celled morula | Starting point of Fallopian tube |
| 4. | Late morula | Middle part of Fallopian tube |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyReceptors for sperm binding in mammals are present on:
1. Perivitelline space
2. Zona pellucida
3. Corona Radiata
4. Vitelline membrane
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of these is not an important component of initiation of parturition in humans?
1. Release of oxytocin
2. Release of prolactin
3. Increase in estrogen and progesterone ratio
4. Synthesis of prostaglandins
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