Recent questions tagged 2019

In Antirrhinum (Snapdragon), a red flower was crossed with a white flower and in F1 generation, pink flowers were obtained. When pink flowers were selfed, the F2 generation showed white, red and pink flowers. Choose the incorrect statement from the following :

asked Jul 8, 2019 by pady_1

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Respiratiory Quotient (RQ) value of tripalmitin is :

asked Jul 8, 2019 by pady_1

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Variations caused by mutation, as proposed by Hugode Vries, are

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Which of the following is the most important causes for animals and plants being driven to extinction?

asked Jul 8, 2019 by pady_1

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Placentation, in which ovules develop on the inner wall of the ovary or in peripheral part, is :

asked Jul 8, 2019 by pady_1

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Which of the following statements is incorrect?

asked Jul 8, 2019 by pady_1

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Following statements describe the characteristics of the enzyme Restriction endonuclease. Identify the incorrect statement.

asked Jul 8, 2019 by pady_1

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The frequency of recombination between gene pairs on the same chromosome as a measure of the distance between genes was explained by :

asked Jul 8, 2019 by pady_1

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Consider following features: (a) Organ system level of organisation (b) Bilateral symmetry (c) True coelomates with segmentation of body Select the correct option of animal groups which possess all the characteristics

asked Jul 8, 2019 by pady_1

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Which of the following muscular disorders is inherited ?

asked Jul 8, 2019 by pady_1

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What is the direction of movement of sugars in phloem?

asked Jul 8, 2019 by pady_1

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Use of an artificial kidney during hemodialysis may result in : (a) Nitrogenous waste build-up in the body (b) Non-elimination of excess potassium ions (c) Reduced absorption of calcium ions from gastro- intestinal tract (d) Reduced RBC production Which of the following options is the most appropiate?

asked Jul 8, 2019 by pady_1

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The concept of " Omnis cellula-e cellula" regarding cell division was first proposed by:

asked Jul 8, 2019 by pady_1

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Which of the following statements is not correct?

asked Jul 8, 2019 by pady_1

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Which of the following features of genetic code does allow bacteria to produce human insulin by recombinant DNA technology?

asked Jul 8, 2019 by pady_1

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Which of the following factors is responsible for the formation of concentrated urine?

asked Jul 8, 2019 by pady_1

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Which of the following immune responses is responsible for rejection of kidney graft?

asked Jul 8, 2019 by pady_1

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Which of the following sexually transmitted diseases is not completely curable ?

asked Jul 8, 2019 by pady_1

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Is some plants, the female gamete develops into embryo without fertilization. This phenomenon is known as :

asked Jul 8, 2019 by pady_1

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Which of the following protocols did aim for reducing emission of chloroflurocarbons into the atmosphere?

asked Jul 8, 2019 by pady_1

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Which of the following pairs of gases is mainly responsible for green house effect?

asked Jul 8, 2019 by pady_1

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Xylem translocates :-

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What is the genetic disorder in which an individual has an overall masculine development, gynaecomastia, and is sterile ?

asked Jul 8, 2019 by pady_1

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Which of the following pair of organelles does not contain DNA :-

asked Jul 8, 2019 by pady_1

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Which part of the brain is responsible for thermoregulation ?

asked Jul 8, 2019 by pady_1

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What is the site of perception of photoperiod necessary for induction of flowering in plants :-

asked Jul 8, 2019 by pady_1

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The shorter and longer arms of a submetacentric chromosome are referred to as :-

asked Jul 8, 2019 by pady_1

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A gene locus has two alleles A, a. If the frequency of dominant allele A is 0.4 then what will be the frequency of homozygous dominant, heterozygous and homozygous recessive individuals in the population ?

asked Jul 8, 2019 by pady_1

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Select the correct sequence of transport of sperm cells in male reproductive system :-

asked Jul 8, 2019 by pady_1

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Select the incorrect statement :-

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Colostrum, the yellowish fluid, secreted by mother during the initial days of lactation is very essential to impart immunity to the newborn infants because it contains

asked Jul 8, 2019 by pady_1

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Expressed Sequence Tages (ESTs) refers to :-

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Which of the following can be used as a biocontrol agent in the treatment of plant disease ?

asked Jul 8, 2019 by pady_1

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Select the hormone-releasing Intra-Uterine Devices?

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What map unit (Centimorgan) is adopted in the construction of genetic maps ?

asked Jul 8, 2019 by pady_1

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Match the following organisms with the products they produce :-

asked Jul 8, 2019 by pady_1

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Which of these following methods is the most suitable for disposal of nuclear waste ?

asked Jul 8, 2019 by pady_1

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Under which of the following conditions will there be no change in the reading frame of following mRNA ? 5'AACAGCGGUGCUAUU3'

asked Jul 8, 2019 by pady_1

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Which one of the following is not a method of in situ conservation of biodiversity ?

asked Jul 8, 2019 by pady_1

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Which of the following in true for Golden rice ?

asked Jul 8, 2019 by pady_1

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Which one of the following equipments is essentially required for growing microbes on a large scale, for industrial production of enzymes?

asked Jul 8, 2019 by pady_1

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Identify the cells whose secretion protects the lining of gastro-intestinal tract from various enzymes

asked Jul 8, 2019 by pady_1

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Which of the following glucose transporters is insulin-dependent ?

asked Jul 8, 2019 by pady_1

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Purines found both in DNA and RNA are :-

asked Jul 8, 2019 by pady_1

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Which of the following statements is incorrect ?

asked Jul 8, 2019 by pady_1

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In a double slit experiment, when light of wavelength 400 nm was used, the angular width of the first minima formed on a screen placed 1m away, was found to be 0.2°. What will be the angular width of the first minima, if the entire experimental apparatus is immersed in water$(\mu _{water} = \frac{4}{3})$

asked Jul 8, 2019 by pady_1

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The work done to raise a mass m from the surface of the earth to a height h, which is equal to the radius of the earth, is

asked Jul 8, 2019 by pady_1

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Ionized hydrogen atoms and a-particles with same momenta enters perpendicular to a constant magnetic field B. The ratio of their radii of their paths $rH:r\alpha$ will be

asked Jul 8, 2019 by pady_1

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Two point charges A and B, having charges +Q andQ respectively, are placed at certain distance apart and force acting between them is F. If 25% charge of A is transferred to B, then force between the charges becomes :

asked Jul 8, 2019 by pady_1

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A small hole of area of cross-section $2 mm^2$ is present near the bottom of a fully filled open tank of height 2m. Taking g = $10\frac{ m}{s^2}$, the rate of flow of water through the open hole would be nearly :

asked Jul 8, 2019 by pady_1

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