NEET (NTA)-National Eligibility cum Entrance Test (Medical) Biology: Questions 2260 - 2263 of 3511

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Question number: 2260

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

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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, is a flask shaped structure. Gemma cup is pecialised structure of asexual reproduction.

Question number: 2261

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

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Appeared in Year: 1992

MCQ▾

Question

Which of the following nitrogen base is not found in DNA

Choices

Choice (4) Response

a.

Cytosine

b.

Thymine

c.

Guanine

d.

Uracil

Question number: 2262

» Diversity in Living World » Five Kingdom Classification » Monera

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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.

Question does not provide sufficient data or is vague

Question number: 2263

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

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Appeared in Year: 2008

MCQ▾

Question

Double helix model of DNA is proposed by

Choices

Choice (4) Response

a.

Watson and Crick

b.

Singer and Nicholson

c.

Kornberg and Khurana

d.

Schleiden schwann