NEET Biology: Questions 868 - 874 of 3146

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Question number: 868

» Human Physiology » Excretory Products and Their Elimination » Urine Formation

MCQ▾

Question

In micturition

Choices

Choice (4) Response

a.

Urethra contracts.

b.

Ureter contracts.

c.

Ureter relaxes.

d.

Urethra relaxes.

Question number: 869

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

MCQ▾

Question

Leafy gametophytes is formed from protonema in

Choices

Choice (4) Response

a.

Anthoceros

b.

Funaria

c.

Riccia

d.

Marchantia

Question number: 870

» Plant Physiology » Plant Growth and Development » Growth Regulators-Auxin, Gibberellin, Cytokinin, Ethylene, ABA

MCQ▾

Question

An excised leaf does not turn yellow if it is induced to root. This is attributed to synthesis it root of OR Leaf ageing is retarded by

Choices

Choice (4) Response

a.

Ethylene

b.

Cytokinins

c.

Gibberellins

d.

Auxins

Question number: 871

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

MCQ▾

Question

Wood of Cycas is

Choices

Choice (4) Response

a.

manoxylic and polyxylic

b.

monoxylic

c.

monoxylic and manoxylic

d.

diploxylic

Question number: 872

» Genetics and Evolution » Molecular Basis of Inheritance » Genome and Human Genome Project

MCQ▾

Question

The eukaryotic genome differs from the prokaryotic genome because

Choices

Choice (4) Response

a.

Repetitive sequences are present in eukaryotes.

b.

The DNA is circular and single stranded in prokaryotes.

c.

Genes in the former case are organized into operons

d.

The DNA is complexed with histones in prokaryotes

Question number: 873

» Biotechnology and Its Applications » Application of Biotechnology in Health and Agriculture

MCQ▾

Question

Aims of plant breeding are to produce

Choices

Choice (4) Response

a.

High yielding varieties

b.

Early maturing varieties

c.

Disease-free varieties

d.

All a. , b. and c. are correct

Question number: 874

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

MCQ▾

Question

Which of the following statements is correct for ulothrix?

Choices

Choice (4) Response

a.

Membranous alga producing zoospores

b.

Filamentous alga with non-flagellated reproductive stages.

c.

Filamentous alga with flagellated reproductive stages.

d.

Non-motile colonial alga lacking reproductive stages.

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