Email
Chat with tutors
Login
Ask Questions, Get Answers
Menu
X
home
ask
tuition
questions
practice
papers
mobile
tutors
pricing
X
Questions asked by priyanka.clay6
Questions
1352
questions
0
answers selected
Give the term for kinds of gametes in the given figures A and B . In the figure A give the specific terms for the gametes.
cbsc
class12
biology
reproduction in organism
sec-c
asked
Feb 7, 2019
1
answer
Give the term for the following figure A,B and C.
cbsc
class12
biology
reproduction in organism
sec-c
asked
Feb 7, 2019
1
answer
What are oviparous and viviparous animals? Give examples.
cbsc
class12
biology
reproduction in organism
sec-c
asked
Feb 7, 2019
1
answer
What is parthenogenesis? Give an example.
cbsc
class12
biology
reproduction in organism
sec-c
asked
Feb 7, 2019
1
answer
Write the sexuality in the following organisms. <br> (a) Earthworm <br> (b) Cockroach <br> (c) Chara <br> (d) Marchantia <br> (e) Sweet Potato <br> (f) Leech.
cbsc
class12
biology
reproduction in organism
sec-c
asked
Feb 7, 2019
1
answer
Explain the features exhibited by the organisms showing external fertilization to Enhance the chances of syngamy .What is the disadvantage of external fertilization ?
cbsc
class12
biology
reproduction in organism
sec-c
asked
Feb 6, 2019
1
answer
Name the asexual reproductive structures of the following: Chlamydomonas, Penicillum, Hydra, Sponge.
cbsc
class12
biology
reproduction in organism
sec-b
asked
Feb 6, 2019
1
answer
Life spans of organisms are not necessarily correlated with their sizes. Explain
cbsc
class12
biology
reproduction in organism
sec-b
asked
Feb 6, 2019
1
answer
How do the following organisms reproduce? Yeast, Amoeba.
cbsc
class12
biology
reproduction in organism
sec-b
asked
Feb 6, 2019
1
answer
Gametes are always haploid .How are the gametes produced from a haploid plant body and a diploid plant body?
cbsc
class12
biology
reproduction in organism
sec-b
asked
Feb 6, 2019
1
answer
Differentiate between asexual and sexual method of reproduction.
cbsc
class12
biology
reproduction in organism
sec-b
asked
Feb 6, 2019
1
answer
What will happen if meiosis does not take place during gametogenesis?
cbsc
class12
biology
reproduction in organism
sec-b
asked
Feb 6, 2019
1
answer
Arrange the following events in proper sequence: <br> a. Embryogenesis <br> b. Fertilization <br> c. Gametogenesis <br> d. Zygote formation.
cbsc
class12
biology
reproduction in organism
sec-b
asked
Feb 6, 2019
1
answer
Can we refer the off-springs formed by asexual reproduction, as a clone? If yes, why?
cbsc
class12
biology
reproduction in organism
sec-b
asked
Feb 6, 2019
1
answer
Why dogs and cats have oestrus cycle but human beings have menstrual cycle, though all are mammals?
cbsc
class12
biology
reproduction in organism
sec-b
asked
Feb 6, 2019
1
answer
Name the process of development of embryo from the zygote. What are the two changes which the zygote undergoes during this process?
cbsc
class12
biology
reproduction in organism
sec-b
asked
Feb 6, 2019
1
answer
Though ginger is found under the soil. Yet it is not a root, but stem. Justify your answer with two reasons. (ii) What are the specialized cells which undergo meiosis in the diploid organisms, called as?
cbsc
class12
biology
reproduction in organism
sec-b
asked
Feb 6, 2019
1
answer
Why can't man be oviparous? Justify the statement.
cbsc
class12
biology
reproduction in organism
sec-b
asked
Feb 6, 2019
1
answer
Label A and B and write the type of the vegetative propagule.
cbsc
class12
biology
reproduction in organism
sec-b
asked
Feb 6, 2019
1
answer
Identify the given plants. <br> How are they different from each other with regard to reproductive organs they possess ?
cbsc
class12
biology
reproduction in organism
sec-b
asked
Feb 6, 2019
1
answer
Sexual reproduction involves fertilization and the formation of embryo. What are the critical events needed for the successful reproduction process?
cbsc
class12
biology
reproduction in organism
sec-b
asked
Feb 6, 2019
1
answer
Categorise the following plants based on the floral characteristics: Hibiscus, Cucumber, Papaya, Guava.
cbsc
class12
biology
reproduction in organism
sec-b
asked
Feb 6, 2019
1
answer
Do you agree with the statement only asexual reproduction can give rise to individuals resembling their parent? Support your answer with an example.
cbsc
class12
biology
reproduction in organism
sec-b
asked
Feb 6, 2019
1
answer
In non-primate mammals like cows, sheep, rats, deer etc, the cyclical changes that occur during reproduction are called oestrus cycle whereas in primates it is called as menstrual cycle. How can we distinguish between them?
cbsc
class12
biology
reproduction in organism
sec-b
asked
Feb 6, 2019
1
answer
Reptiles and frogs are oviparous animals; yet they differ in certain aspects of reproduction. Bring out the differences and mention which of the two animals has more advantage. Give one reason.
cbsc
class12
biology
reproduction in organism
sec-b
asked
Feb 6, 2019
1
answer
Give the chromosome number in the gametes of the following, if the number of chromosomes in their meiocytes is as follows: <br> a. Dog-78 <br> b.Rice – 24 <br> c. Housefly – 12 <br>d. Butterfly -380
cbsc
class12
biology
reproduction in organism
sec-b
asked
Feb 5, 2019
1
answer
Fill in the missing columns: <br>
cbsc
class12
biology
reproduction in organism
sec-b
asked
Feb 5, 2019
1
answer
In seed plants how are the non-motile gametes carried to female gamete?
cbsc
class12
biology
reproduction in organism
sec-a
asked
Feb 5, 2019
1
answer
Name the plant which flower only once in their life time.
cbsc
class12
biology
reproduction in organism
sec-a
asked
Feb 5, 2019
1
answer
Name the type of plants that show clear cut vegetative, reproductive and senescent phases.
cbsc
class12
biology
reproduction in organism
sec-a
asked
Feb 5, 2019
1
answer
What is a vegetative phase in plants?
cbsc
class12
biology
reproduction in organism
sec-a
asked
Feb 5, 2019
1
answer
What do you mean by clones?
cbsc
class12
biology
reproduction in organism
sec-a
asked
Feb 5, 2019
1
answer
Name the structure from where every sexually reproducing organism begins their life.
cbsc
class12
biology
reproduction in organism
sec-a
asked
Feb 5, 2019
1
answer
Name the type of fertilization wherein the survival of the organism up to adulthood is threatened.
cbsc
class12
biology
reproduction in organism
sec-a
asked
Feb 5, 2019
1
answer
Name the scientific name of the plant which flower once in 12 years.
cbsc
class12
biology
reproduction in organism
sec-a
asked
Feb 5, 2019
1
answer
Name the stage of growth and maturity in the life of animals before they can reproduce sexually.
cbsc
class12
biology
reproduction in organism
sec-a
asked
Feb 5, 2019
1
answer
The type of reproduction wherein the off springs produced are identical to each other and to the parent.
cbsc
class12
biology
reproduction in organism
sec-a
asked
Feb 5, 2019
1
answer
What is the significance of reproduction?
cbsc
class12
biology
reproduction in organism
sec-a
asked
Feb 5, 2019
1
answer
In a culture there is a mixture of haploid and diploid cells. It must be because of a) Generative cells b) Vegetative cells c) anther wall d) pollen cells
cbsc
class12
biology
reproduction in organism
sec-a
asked
Feb 5, 2019
1
answer
Why do organisms like algae and fungi which normally adopt asexual reproduction switch over to sexual method of reproduction just before the onset of adverse conditions?
cbsc
class12
biology
reproduction in organism
sec-a
asked
Feb 5, 2019
1
answer
Most sugarcane varieties cultivated today are aneuploids and are sterile. But they grow and perform extremely well. Sterility in sugarcane is not of any disadvantage. Why?
cbsc
class12
biology
reproduction in organism
sec-a
asked
Feb 5, 2019
1
answer
If a branch “dasheri mango” is grafted on a tree producing “desi mangoes” what type of mangoes will be borne on grafted branch& other branches of the plant?
cbsc
class12
biology
reproduction in organism
sec-a
asked
Feb 5, 2019
1
answer
Fertilization results in the production of zygote. Zygote is called as a vital link. Why is it called so?
cbsc
class12
biology
reproduction in organism
sec-a
asked
Feb 5, 2019
1
answer
Flowering varies from plant to plant. Give 2 examples in support of this statement.
cbsc
class12
biology
reproduction in organism
sec-a
asked
Feb 5, 2019
1
answer
Why do plants like bryophytes and pteridophytes produce a large number of male gametes?
cbsc
class12
biology
reproduction in organism
sec-a
asked
Feb 5, 2019
1
answer
What is common among earthworm, leech and sponge with regard to reproductive organs?
cbsc
class12
biology
reproduction in organism
sec-a
asked
Feb 5, 2019
1
answer
Do haploid organisms have meiosis in their lifecycle? If yes, state when does it occur?
cbsc
class12
biology
reproduction in organism
sec-a
asked
Feb 5, 2019
1
answer
Why are the following called as heterogametes? Give an example.
cbsc
class12
biology
reproduction in organism
sec-a
asked
Feb 5, 2019
1
answer
How is vegetative propagation related to the following plants ?
cbsc
class12
biology
reproduction in organism
sec-a
asked
Feb 5, 2019
1
answer
How is a nodal segment in sugarcane helpful as a reproductive unit?
cbsc
class12
biology
reproduction in organism
sec-a
asked
Feb 5, 2019
1
answer
Page:
« prev
1
...
24
25
26
27
28
next »
Home
Ask
Tuition
Questions
Practice
Your payment for
is successful.
Continue
...