A polygenic trait is controlled by 3 genes A B and C. In a cross AaBbCc x AaBbCc the phenotypic ratio of the offsprings was observed as 1 : 6 : m : 20 : m : 6 : 1. What is the value of m?
1.10
2.15
3.18
4.24
Amarbel is an example of
1.parasite
2.host
3.autotroph
4.saprotroph
Blood pressure is measured with
1.Thermometer
2.Barometer
3.Sphygmomanometer
4.Lactometer
Cancer is caused by
1.Loss of immunity of cells
2.Uncontrolled meiosis
3.Uncontrolled mitosis
4.Rupturing of cells
Cellular respiration is best associated with the
1.microtubule
2.ribosome
3.Golgi apparatus
4.mitochondrion
Cellulose is a
1.Mineral
2.Protein
3.Fat
4.Carbohydrate
Deficiency of Thiamine
1. Beri-Beri
2. Pellagra
3.Anaemia
4.Rickets
DNA can be found in what Organelles?
1.Chloroplasts and Mitichondria
2. Nucleus and Ribosomes
3.Ribosomes and Mitochondria
4.Endoplasmic Reticulum and Nucleus
In case of a heart attack a hormone is injected as an emergency measure Which one is it?
1.Thyroxine
2.Adrenaline
3.Heparin
4.Insulin
In plant body the water and minerals are transported by _______
1.Bast
2.Collenchyma
3.parenchyma
4.Xylum
Islets of Langerhans are present in
1.Kidney
2.Liver
3.Pancreas
4.Trachea
karl Landsteiner discovered
1.Blood corpuscles
2.Blood groups
3.Blood vessels
4.Proteins in Blood
Lamarcks theory of inheritance of acquired characters was challenged by
1.August Weismann
2. Hugo de Vries
3.Herbert Spencer
4.Carl Linnaeus
Leukorrhea may be associated with
1.Cervicitis
2.Ovarian Cysts
3.Eclampsia
4. Menorrhagia
Light compensation zone refers to
1. where light is available in plenty
2. where light is maximum
3.beyond which light does not penetrate
4.where all light is used
Main function of white blood corpuscles is _______
1.Transport of carbon dioxide
2.Transport of oxygen
3. To produce immune system of body
4.None of these
Man has _____ pairs of salivary glands
1.3
2.4
3.6
4.8
n recombinant DNA methods the term vector can refer to
1.the sticky end of a DNA fragment
2.a plasmid used to transfer DNA into a living cell
3.a DNA probe used to identify a particular gene
4. the enzyme that cuts DNA into restriction fragments
Nitrogenous bases in DNA and RNA?
1.Adenine
2.Cytosine
3.Guanine
4.All the above
Oath taken by medical graduates is given by-
1.Theophrastus
2.Aristotle
3.Darwin
4.Hippocrates
One of the following cannot be performed by animals
1.Respiration
2.Photosynthesis
3.Reproduction
4.Digestion
Organisms which synthesise their own food are called
1.autotrophs
2.heterotrophs
3.auxotrophs
4.saprotrophs
Pellagrai s caused due to the deficiency of
1.Niacin
2.Riboflavin
3.Thiamine
4.Pyridoxine
Source of infection in diseases like Tuberculosis Mumps and Whooping cough is
1.Direct contact
2. Droplets of saliva
3.Carrier organism
4.A vector
Statement which is true about bacteria ?
1. All bacteria are autotrophs
2.Most of them are heterotrophs but some are autotrophs
3.All bacteria heterophs
4.All bacteria are photosynthetic
Study Of Cells Is Called
1.Cellogysm
2.Cell biology
3.Cell Organism
4.None
The brain is covered by
1.meninges
2.skin
3.bone
4.all the above
The major centre to receive analyze and integrate information in body is
1.Heart
2.Kidney
3.Pituitary
4.Brain
The mode of nutrition in which particulate food is devoured is
1.holozoic
2.holophytic
3.saprophytic
4.parasitic
The process in which energy stored in carbohydrates is released
1.Photosynthesis
2.Respiration
3.Reproduction
4.Excretion
The process of forming urine begins in the
1.embryo
2.ureter
3.nephrons
4.urethra
The protoplasm of a child is exactly the same as that of its
1.mother
2.father
3.grandfather
4.identical twin
The story of vitamins dates back to
1.15th century
2.16th century
3.17th century
4.18th century
The valve present between left auricle and left ventricle is
1.Mitral
2.Tricuspid
3.Semilunar
4.Pulmonary
The Vitamin that is destroyed on heating
1.E
2.C
3.A
4.B
The weight of the brain in the total weight of the body is about
1.2%
2.3%
3.4%
4.5%
To what kingdom do common bacteria belong
1.Archaea
2.Protista
3.Eubacteria
4.All the above
Vessels are the major water conducting cells in:
1.Fungi
2.Angiosperms
3.Bryophyta
4.Thallophyta
Vitamin present in guava fruits
1. Vitamin - A
2.Vitamin - B
3.Vitamin - C
4. Vitamin - D
What is a direct result of aerobic respiration?
1.The enzymes for anaerobic respiration are produced and stored in lysosomes
2. Alcohol is produced by yeast and bacteria
3.The potential energy of glucose is transferred to ATP molecules
4.Lactic acid is produced in muscle tissue
What prevents food from entering the windpipe?
1.Epiglottis
2.Pharynx
3.Trachea
4.Larynx
What type of macromolecule is an enzyme?
1.Proteins
2.Saturated fats
3.Phospholipids
4. Lipids
Which among the following is a Vitamin?
1.Citric acid
2. Follic acid
3.Glutonic acid
4.none
Which best describes genetic mutations?
1.Genetic mutations that cause diseases are always passed on to offspring.
2. Some inherited genetic mutations can be good for the offspring
3.Different genetic mutations cause few forms of cancer.
4.Somatic mutations can be inherited from parents or acquired during life.
Which best describes transformation in bacteria? .
1.Bacteria take DNA from their environment.
2.Bacteria inject DNA into another cell.
3.Bacteria lie dormant for many weeks.
4.Bacteria transfer DNA with a bacteriophage
Which of the following occurred in the presence of tetrodotoxin?
1.The number of action potentials decreased.
2. The size of the action potential increased.
3.The number of action potentials increased.
4.The size of the action potential decreased.
Which one of the following strongly threatens biodiversity?
1.Eragile ecosystems such as mangroves and wetlands
2. Inaccessible habitates in the Himalayas
3.Desstruction of natural habitates and regetation and Jhum cultivation
4.Creation of biosphere reserves
Which organelles in the cell, other than nucleus contains DNA?
1.Centriole
2.Goalgi apparatus
3.Lysosomes
4.Mitochondria
Which shows a correctly paired DNA molecule?
1.AT
2.TC
3.AC
4.TG
Yeast used in making bread is a
1.Fungus
2.Bacteria
3.Seed
4.Plant