NCERT Solutions
Board Paper Solutions
Ask & Answer
School Talk
Login
GET APP
Login
Create Account
Popular
Latest
Expert Answers
ALL
Ruba Balu
Subject: Biology
, asked on 18/5/18
3rd one please explain how 1600
Answer
1
Prince Second
Subject: Biology
, asked on 16/5/18
Please tell correct answer.
Q.
A colour-blind man marries a woman with normal sight who has no history of colour blindness in her family. What is the probability of their grandson being colour-blind ?
A) 0.25
B) 0.5
C) 1
D) Nil
Answer
2
Anuj
Subject: Biology
, asked on 30/4/18
How to know about flaccidity of a cell from DPD ( If DPD of fully turgid cell is 0 so won't higher DPD mean more flaccidity?)
Answer
2
Alok Singh
Subject: Biology
, asked on 26/4/18
Solve this:
Q. The technique of obtaining large number of plantlets by tissue culture method is called.
(A) Plantlet culture
(B) organ culture
(C) micropropagation.
(D) macropropagation.
Answer
2
Alok Singh
Subject: Biology
, asked on 26/4/18
Solve this: Which Of the following statements is not true ? (A ) pollen grains are rich in nutrients and they are used in the form of tablets and syrups (B) Pollen grains of some plants cause allergics and bronchial afflictions in some people (C) the flowers pollinated by flies and hats secrete foul odour attract them. (D) Honey is made by bees by digesting pollen collected from 'lowers. AIPMT 2015
Answer
2
Alok Singh
Subject: Biology
, asked on 26/4/18
Solve this:
Q. Transmission tissue is characteristic feature of
(A) hollow style
(B) solid style
(C) dry stigma
(D) wet stigma
Answer
1
Alok Singh
Subject: Biology
, asked on 26/4/18
Solve this:
Q. Coconut water from a tender coconut is
( A) degenerated nucellus
(B) immature embryo
(C) free nuclear endosperm
(D) innermost layer of the seed coat
Answer
2
Alok Singh
Subject: Biology
, asked on 26/4/18
Solve this:
Q. Filiform apparatus is characteristic feature of
(A) synergids
(B) generative cell
(C) nucellar embryo
(D) aleurone cell
Answer
1
Alok Singh
Subject: Biology
, asked on 26/4/18
Solve this:
Which one is the most common embryo sac in flowering plant?
(A) Monosporie. 8 nucleated and 7 celled
(B)Monosporie. 7 celled 7 nucleated
(c)Bisporic,8 nucleated and 7 celled
(D) Bisporic,8 nucleated and 7 celled
Answer
1
Alok Singh
Subject: Biology
, asked on 26/4/18
Solve this:
Directions : The following question consists of two statements. Assertion and Reason. While answering this question, you required to choose any one of the following responses.
(A) If both the Assertion and the Reason are true and the Reason is a correct explaiantion of the
Assertion.
(B) If both the Assertion and resaon are true but the resaon is not a Correct explaination of the assertion.
(C) If the Assertion is true but the Reason is false
(D) If both the Assertion and Reason are false.
Assertion: The megaspore mother cell divides by meiotic division to produce four spores
Resaon: Megaspore Mother Cells (MMC) are diploid and megaspores are haploid
Answer
1
Alok Singh
Subject: Biology
, asked on 26/4/18
In a flowering plant, the pollen tube first arrives in
(A) egg (B) an antipodal cell (C) a synergid (D) central cell
Answer
1
Alok Singh
Subject: Biology
, asked on 26/4/18
Feathery stigma belongs to
(A) wheat (B) pea (C) Datura (D)
Caesalpinia
Answer
1
Alok Singh
Subject: Biology
, asked on 26/4/18
Embryo sac is
(A) megaspore (B) microgametophyte
(C) female gametophyte (D) megasporangium
Answer
1
Alok Singh
Subject: Biology
, asked on 26/4/18
Solve this:
Answer
1
Alok Singh
Subject: Biology
, asked on 26/4/18
Which one of the following statements is correct?
(A) Hard outer layer of pollen is called inline.
(B) Sporogenous tissue is haploid.
(C)
Endothecium
produces the microspores.
(D) Tapetum nourishes the developing pollen.
Answer
1
1
2
3
4
5
Next
What are you looking for?
Q. A colour-blind man marries a woman with normal sight who has no history of colour blindness in her family. What is the probability of their grandson being colour-blind ?
A) 0.25
B) 0.5
C) 1
D) Nil
Q. The technique of obtaining large number of plantlets by tissue culture method is called.
(A) Plantlet culture
(B) organ culture
(C) micropropagation.
(D) macropropagation.
Q. Transmission tissue is characteristic feature of
(A) hollow style
(B) solid style
(C) dry stigma
(D) wet stigma
Q. Coconut water from a tender coconut is
( A) degenerated nucellus
(B) immature embryo
(C) free nuclear endosperm
(D) innermost layer of the seed coat
Q. Filiform apparatus is characteristic feature of
(A) synergids
(B) generative cell
(C) nucellar embryo
(D) aleurone cell
Which one is the most common embryo sac in flowering plant?
(A) Monosporie. 8 nucleated and 7 celled
(B)Monosporie. 7 celled 7 nucleated
(c)Bisporic,8 nucleated and 7 celled
(D) Bisporic,8 nucleated and 7 celled
Directions : The following question consists of two statements. Assertion and Reason. While answering this question, you required to choose any one of the following responses.
(A) If both the Assertion and the Reason are true and the Reason is a correct explaiantion of the
Assertion.
(B) If both the Assertion and resaon are true but the resaon is not a Correct explaination of the assertion.
(C) If the Assertion is true but the Reason is false
(D) If both the Assertion and Reason are false.
Assertion: The megaspore mother cell divides by meiotic division to produce four spores
Resaon: Megaspore Mother Cells (MMC) are diploid and megaspores are haploid
(A) egg (B) an antipodal cell (C) a synergid (D) central cell
(A) wheat (B) pea (C) Datura (D) Caesalpinia
(A) megaspore (B) microgametophyte
(C) female gametophyte (D) megasporangium
(A) Hard outer layer of pollen is called inline.
(B) Sporogenous tissue is haploid.
(C) Endothecium produces the microspores.
(D) Tapetum nourishes the developing pollen.