NEET Biology: Questions 2257 - 2262 of 3239

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Question number: 2257

» Diversity in Living World » Five Kingdom Classification » Plant Group - Gymnosperms

Appeared in Year: 2011

MCQ▾

Question

A prokaryotic autotrophic nitrogen fixing symbiont is found in [CBSE PM/PD]

Choices

Choice (4) Response

a.

Cicer

b.

Cycas

c.

Pisum

d.

Alnus

Question number: 2258

» Genetics and Evolution » Molecular Basis of Inheritance » DNA as Genetic Material

MCQ▾

Question

In which of the following, the DNA is the principal constituent -

Choices

Choice (4) Response

a.

Ribosomes

b.

Chromatin

c.

Nucleus

d.

Chloroplast

Question number: 2259

» Diversity in Living World » Five Kingdom Classification » Plant Group - Bryophytes

MCQ▾

Question

Compared with the gametophytes of the bryophytes, the gametophytes of vascular plants tend to be

Choices

Choice (4) Response

a.

Smaller but to have larger sex organs

b.

Larger and to have larger sex organs

c.

Larger but to have smaller sex organs

d.

Smaller and to have smaller sex organs

Question number: 2260

» Diversity in Living World » Five Kingdom Classification » Plant Group - Bryophytes

Essay Question▾

Describe in Detail

Examine the figure given below and select the right option giving all the four parts (a, b, c, d) correctly identified.

given below and select the right answer.

Given Below and Select the Right Answer.

given below and select the right option giving all the four parts

name of the part and choose answer

name of the part and choice correct answer

no

A

B

C

D

1

Antheridiophore

Male thallus

Globule

Roots

2

Archegoniophore

Female thallus

Gemma cup

Rhizoids

3

Seta

Sporophyte

Bud

Foot

Explanation

The given figure is considered as a female plant of Marchantia. A is for the Archegoniophore, B is for the female thallus, C is for the Gemma cup and D is for the Rhizoids.

Image showing Female thallus of Marchantia.

Image Showing Female Thallus of Marchantia.

The female sex organ of Marchantia is known as archegonium,… (13 more words) …

Question number: 2261

» Genetics and Evolution » Molecular Basis of Inheritance » Structure of DNA and RNA

Appeared in Year: 1992

MCQ▾

Question

Which of the following nitrogen base is not found in DNA

Choices

Choice (4) Response

a.

Uracil

b.

Cytosine

c.

Thymine

d.

Guanine

Question number: 2262

» Diversity in Living World » Five Kingdom Classification » Monera

MCQ▾

Question

Select the correct combination of the statement (a-d) regarding the characteristics of certain organisms:

  1. Methanogens are Archaebacteria which produce methane in marshy areas
  2. Nostoc is filamentous blue-green alga which fixes atmospheric nitrogen
  3. Chemosynthetic autotrophic bacteria synthesize cellulose from glucose
  4. Mycoplasma lacks a cell wall and can survive without oxygen

Choices

Choice (4) Response

a.

2 and 3

b.

1 and 2

c.

1, 2 and 4

d.

None of the above

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