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Which of the following is an incorrect combination of organism
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Which of the following is an incorrect combination of organism with its chromosome number in meiocyte and in gamete?
Sexual reproduction

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Updated on: Jan 30, 2023

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Book:

Biology-for-NEET-Volume-2-Class-XII

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Which of the following is an incorrect combination of organism with its chromosome number in meiocyte and in gamete?
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[A] Chromosome number in meiocyte of onion cell is 32 , while chromosome number in gamete is 16 .
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Practice questions from Biology-for-NEET-Volume-2-Class-XII

Question 1
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The male gametes of rise plant have 12 chromosomes in their nucleus. The chromosome number in the female gamete, zygote and the cells of the seedling will be, respectively
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Question 3
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Clear cut vegetative, reproductive an senescent phases cannot be observed in
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Question 4
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Which of the following options correctly identifies artificial and natural methods of vegetative propagation?
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Assertion : Many plants are propagated vegetatively even though they bear seeds.
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Question 3
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Spore formation is the most common asexual method of reproduction in:
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Question 4
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spermin female fallopian during ecoun. - gaculo s meeting. Periodic abstinence is one such 1 methods work on the principle of avoid avoid or abstain from coitus from day 10 to 17 of the menstrual ovulation could be expected. As chances of fertilisation are luring this period, it is called the fertile period. Therefore, by abstaining from coitus during this period, conception could be prevented. Withdrawal or coitus interruptus is another method in which the male partner withdraws his penis from the vagina just before ejaculation so as to avoid insemination. Lactational amenorrhea (absence of menstruation) method is based on the fact that ovulation and therefore the cycle do not occur during the period of intense lactation following parturition. Therefore, as long as the mother breast-feeds the child fully, chances of conception are almost nil. However, this method has been reported to be effective only upto a maximum period of six months following parturition. As no medicines or devices are used in these methods, side effects are almost nil. Chances of failure, though, of this method are also high. In barrier methods, ovum and sperms are prevented from physically meeting with the help of barriers. Such methods are available for both males and females. Condoms (Figure , b) are barriers made of thin rubber/ latex sheath that are used to cover the penis in the male or vagina and cervix in the female, just before coitus so that the ejaculated semen would not enter into the female reproductive tract. This can prevent conception. 'Nirodh' is a popular brand of condom for the male. Use of condoms has increased in recent years due to its additional benefit
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Question Text
Which of the following is an incorrect combination of organism with its chromosome number in meiocyte and in gamete?
Updated OnJan 30, 2023
TopicReproduction in Organisms
SubjectBiology
ClassClass 12
Answer TypeText solution:1 Video solution: 1
Upvotes145
Avg. Video Duration2 min