Biology Botany Online MCQ Test Medical exam,NEET UG,JIPMER,AIIMS

NEET UG Botany MCQ-82

Question No:1

In the axoneme of cilium, the pair of central microtubules are connected to peripheral to peripheral microtubules (doublet) by

(A) Axial spoke
(B) Radial spoke
(C) Linkers
(D) Inter doublet bridge

Question No:2

Centriole – like structure that produces cilium or flagellum is called

(A) Baker’s bodies
(B) Peripheral bodies
(C) Basal bodies
(D) (b) & (c)

Question No:3

The membrane less space present nearer to the nucleus in animal cell is

(A) Spherosome
(B) Centrosome
(C) Basal bodies
(D) Chondriosome

Question No:4

Number of centrioles present in a centrosome

(A) One
(B) Two
(C) Three
(D) Four

Question No:5

The fibrils present as the structural component of centrosome are made up of

(A) Tubulin
(B) Mannitol
(C) Insulin
(D) a and b

Question No:6

The proteinaceous central part of the proximal region of the centriole is

(A) Spoke
(B) Tubulin
(C) Hub
(D) Axoneme

Question No:7

Component of centrosome that gives rise to spindle apparatus during cell division in animal cells is

(A) Hub
(B) Axoneme
(C) Centriole
(D) All the above

Question No:8

The term chromatin was coined by

(A) Robert Brown
(B) Robertson
(C) Flemming
(D) Robert Hooke

Question No:9

Chromatin found in the nucleus is a

(A) Ribonucleoprotein
(B) Nucleoprotein
(C) Lipoprotein
(D) Lipoxyprotein

Question No:10

The nucleoprotein fibres present in the interphase nucleus are

(A) Chromatin
(B) Chromosome
(C) Nucleosome
(D) Centromere

Question No:11

One or more spherical bodies found in the matrix of nucleus are called

(A) Chromatin
(B) Nucleoplasm
(C) Nucleoli
(D) Bar bodies

Question No:12

Number of unit membranes that bound the nucleus are

(A) One
(B) Two
(C) Three
(D) Four

Question No:13

The space between the two membranes of nuclear envelope is

(A) Periplastidial space
(B) Perimitochondrial space
(C) Perinuclear space
(D) Perichondrial space

Question No:14

Rough texture of outer nuclear membrane is due to the presence of

(A) RER
(B) SER
(C) Nuclear pores
(D) Ribosomes

Question No:15

Transport of RNA and protein molecules in between nucleus and cytoplasm in both directions is facilitated by

(A) RER
(B) Nuclear envelope
(C) Nuclear pores
(D) Perinuclear space

Question No:16

Cell organelle not found in erythrocytes of many mammals is

(A) Mitochondria
(B) Ribosomes
(C) Nucleus
(D) All

Question No:17

Enucleate living plant cells are

(A) Erythrocytes
(B) Immature sieve tube cells
(C) Mature sieve tube cells
(D) Tracheary elements

Question No:18

A membranous spherical structure found in the nucleoplasm is

(A) Chromatin
(B) Nucleolus
(C) Histones
(D) All

Question No:19

Site for active ribosomal RNA synthesis in nucleus is

(A) Nucleoplasm
(B) Chromatin
(C) Nucleolus
(D) Nuclear envelope

Question No:20

Eukaryotic chromosome is chemically constituted by

(A) DNA
(B) Histones
(C) RNA
(D) All the above