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Cell: Structure and Functions

The part of the cell containing information for the functionin

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The part of the cell containing information for the functioning of a cell is: (A.M.U. $+ 2$ Entrance Test)

Cytoplasm
Plasma
Chromosomes
Ribosomes

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Practice more questions on Cell: Structure and Functions

Question 1

Hard

Tadpoles of frog can be made to grow as giant sized tadpoles, if they are:

administered antithyroid substance like thiourea.
administered large amounts of thyroxine.
reared on a diet rich in egg yolk.
reared on a diet rich in both egg yolk and glucose.

Topic:

Structural Organization in Animals

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Question 2

Medium

Which of the following animals has the maximum chromosome?

Haplopappus
Ascaris
Aulocantha
Pisum sativum

Topic:

Cell: The Unit of Life

View 2 solutions

Question 3

Medium

If the large intestine becomes irritated and peristalsis increases then which of the following will result?

Indigestion
Diarrhoea
Constipation
Vomiting

Topic:

Digestion and Absorption

Book:

Xtract Objective Biology for NEET (Disha)

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Question 4

Easy

Which of the following statements regarding mitochondria is incorrect?

Outer membrane is permeable to monomers of carbohydrates, fats and proteins.
Enzymes of electron transport are embedded in outer membrane.
Inner membrane is convoluted with infoldings.
Mitochondrial matrix contains single circular DNA molecule and ribosomes.

Topic:

Cell: The Unit of Life

Book:

Fundamentals of Physics, Extended

Exam:

NEET 2019

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Students who ask this question also asked

Question 1

Prophase I: Prophase of the first melotic division is typically longer and more complex when compared to prophase of mitosis. It has been furthet subdivided into the following five phases based on chromosomal behaviour, ie., Leptotene. Zygotene. Pachytene. Diplotene and Diakinesis.

{"During leptotene stage the chromosomes become gradually visible under the light microscope. The compaction of chromosomes continues throughoutleptotener This is followed by the second stage of prophase I called zysotene. During this stage chromosomes start pairing together and this process of association is called synapsis. Such paired micrographs of this stage indicate that chromosome synapsis is accompanied by the formation of complex structure called synaptonemal complex. The complex formed by a pair of synapsed homologous chromosomes is called a bivalent or a tetrad. However. these are more clearly visible at the next stage. The first two stages of prophase I are relatively short-lived compared to the next stage that is pachytene. During this stage, the four chromatids of each bivalent chromosomes becomes distinct and clearly appears as tetrads. This stage is characterised by the appearance of recombination nodules, the sites at which crossing over occurs between non-sister chromatids of the homologous chromosomes, Crossing over is the exchange of genetic material between two homologous chromosomes. Crossing over is also recombinase. Crossing over leads to recombination of genetic material on the two chromosomes. Recombination between homologous chromosomes is completed by the end of pachytene, leaving the chromosomes linked at the sites of crossing over.","The beginning of diplotene is recognised by the dissolution of the synaptonemal complex and the tendency of the recombined homologous chromosomes of the bivalents to separate from each other except at the sites of crossovers. These X-shaped structures, are called chiasmata. In oocytes of some vertebrates, diplotene can last for months or years.","The final stage of meiotic prophase $I$ is diakinesis. This is marked by terminalisation of chiasmata. During this phase the chromosomes are fully condensed and the meiotic spindle is assembled to prepare the homologous chromosomes for separation. By the end of diakinesis, the nucleolus disappears and the nuclear envelope also breaks down. Diakinesis represents transition to metaphase.","Metaphase I: The bivalent chromosomes align on the equatorial plate (Figure 10.3). The microtubules from the opposite poles of the spindle attach to the kinetochore of homologous chromosomes."}

Topic:

Cell: Structure and Functions

View 3 solutions

Question 2

The two chromatids of a metaphase chromosome represent :-

replicated DNA to be separated at anaphase
non homologous chromosomes joined at the centromere
pair of homologous chromosomes
maternal and paternal chromosomes joined at the centromere

Topic:

Cell: Structure and Functions

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Question 3

Metamorphosis c) Alternation of generation b) Regeneration d) Biolumi as ancere

How many

Topic:

Cell: Structure and Functions

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Question 4

(A) Mechancial advantage (M.A.), load (L), and effort (E) are related as

$M . A . = L XE$
M.A. = E/L
M.AXE $= L$
$M \cdot A X L = E$

Topic:

Cell: Structure and Functions

View solution

Question Text	The part of the cell containing information for the functioning of a cell is: (A.M.U. $+ 2$ Entrance Test)
Topic	Cell: Structure and Functions
Subject	Biology
Class	Class 11

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