Gentics And Evoloution MCQ

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• Which of the following was found to possess the genes for functions like oncogenesis, opine synthesis, opine breakdown, differentiation of the tumour into root, shoot or root and shoot on a hormoneless synthetic medium?
  ক

  Ti - plasmids

  খ

  Ti opine-genes

  গ

  Ri - plasmids

  ঘ

  T - DNAs
• In pea plants the red and white flower colour tall and dwarf characters, the seed colour and shape all exhibit
  ক

  Incomplete linkage

  খ

  Complete linkage

  গ

  Incomplete penetration

  ঘ

  Complete penetration
• Consider the following statements.<br>1. The sickle cell anaemia is a genetic disease common in tropical and sub-tropical countries.<br>2. The sickle-cell anaemia is due to mutation in b-globulin gene.<br>3. Due to the sickle-shaped anaemia, oxygen carrying capacity of the haemoglobin decreases.<br>Which of the statements given above is/are correct?
  ক

  Only 1

  খ

  1, 2 and 3

  গ

  2 and 3

  ঘ

  Only 3
• Match List-I (Theories) with List-II (Statements) and select the correct answer:<br>
  ক

  <table class="table-style-1"> <tr> <td><strong>List-I</strong></td> <td><strong>List-II</strong></td> </tr> <tr> <td>a. Theory of spontaneous generation</td> <td>1. All forms of life were specially created by the God Almighty</td> </tr> <tr> <td>b. Theory of extra terrestrial origin of life</td> <td>2. The organisms remain unalterable throughout their individual existence and will continue in the same unchanging state throughout eternity</td> </tr> <tr> <td>c. Theory of eternity of present conditions</td> <td>3. Life originated from inert organic matter as a result of a series of physico - chemical conditions</td> </tr> <tr> <td>d. Theory of creationism</td> <td>4. Earth received the vital seeds from other world by means of ultra-microscopic germs</td> </tr></table> a-1, b-2, c-3, d-4

  খ

  a-3, b-4, c-2, d-1

  গ

  a-4, b-1, c-2, d-3

  ঘ

  a-4, b-3, c-2, d-1
• Preserved traces of living organisms retained in the form of impressions of the body parts in the soil are called . . . . . . . .
  ক

  specimen

  খ

  fossils

  গ

  antique

  ঘ

  phylogeny
• Gene located on mitochondrial DNA
  ক

  generally show maternal inheritance

  খ

  are always inherited frommale parent

  গ

  show biparental inheritance

  ঘ

  are not inherited like the nuclear gene
• Consider the following statements<br>1. The first organism were heterotrophs.<br>2. Life appeared first in water.<br>3. There is no life on moon because of absence of water.<br>Which of the statements given above is/are true?
  ক

  1 and 2

  খ

  1 and 3

  গ

  1, 2 and 3

  ঘ

  None of these
• Gene for colour blindness is located on
  ক

  Y-chromosome

  খ

  13^th chromosome

  গ

  X-chromosome

  ঘ

  21^st chromosome
• Hereditary characteristics are passed on from parent to the offspring chiefly through
  ক

  genes

  খ

  enzymes

  গ

  gametes

  ঘ

  centrosome
• The benefits of genetic engineering include
  ক

  Improvement in photosynthesis

  খ

  Conversion of cereals into nitrogen fixing plants

  গ

  Production of transgenic plants in wheat, maize and other crop plants

  ঘ

  All of the above
• The DNA binding proteins bind preferentially to single strands of DNA and
  ক

  Promote denaturation of single stranded DNA

  খ

  Promote maturation of Okazaki fragments

  গ

  Promote denaturation of double helical DNA

  ঘ

  Both A and B
• The widely accepted model of protocell was provided by Fox by
  ক

  Preparing protenoid microspheres from polymers

  খ

  Presenting the protenoid microspheres as the models of protocells

  গ

  Preparing vesicles from proteins and lipids present in the microspheres

  ঘ

  All of the above
• According to Lillie, where twins of opposite sex are born;
  ক

  Male is abnormal and female is sterile with many male characters

  খ

  Male is normal and female is sterile with many male characters

  গ

  Both male and female are normal

  ঘ

  Femaleis normal and the male is sterile with many female characters
• The minimal oxygen partial pressure above which oxidative metabolism can take place in aerobic organisms is called
  ক

  Activation point

  খ

  Pasteur point

  গ

  Equilibrium point

  ঘ

  Absolute point
• Assertion (A) In human beings, the female play a major role in determining the sex of the offspring.<br>Reason (R) Women have two X-chromosomes.
  ক

  Both A and R are true and R is the correct explanation of A

  খ

  Both A and R are true, but R is not the correct explanation of A

  গ

  A is true, but R is false

  ঘ

  A is false, but R is true
• Select the wrong pair.
  ক

  Oparin - Probiont

  খ

  Spallanzani - Approve abiogenesis

  গ

  Haldane - Hot dilute soup

  ঘ

  Fox - Coacervates
• The important postulates in the theory of special creation include:
  ক

  All the different kinds of life (microorganisms, fungi, algae, animals and plants) were created at different times having certain relationship with each other

  খ

  The different kinds of life were created in different forms in which they exist at present, having undergone changes since their creation

  গ

  The bodies and organs of different kinds of life have been specially designed to fully meet the needs of the environment in which they have been created

  ঘ

  All of the above
• In paracentric inversions
  ক

  The centromere is included with the inverted segment

  খ

  The centromere is outside the inverted segment

  গ

  The inverted segment bears two or more centromeres

  ঘ

  There is possibility of duplication and deficiency
• Genes are made up of
  ক

  nucleic acids

  খ

  proteins

  গ

  carbohydrates

  ঘ

  lipids
• Consider the following statements regarding the historical aspects of DNA and choose the correct answer:<br>1. Meischer isolated nucleic acids, which he called nuclein<br>2. Altmann used the term nucleic acid to replace nuclein<br>3. Fischer identified pyrimidines and purines<br>4. Griffiths discovered bacterial transformation by DNA
  ক

  Only 1, 2 and 4 are true

  খ

  Only 2, 3 and 4 are true

  গ

  1, 2, 3 and 4 are true

  ঘ

  Only 1 and 4 are true
• Jumping genes/transposons/movable genetic elements discovered by Barbara McClintock in
  ক

  maize

  খ

  wheat

  গ

  barley

  ঘ

  rice
• A chromosome break occurs, and is followed by duplication of the chromosome during
  ক

  Prophase

  খ

  Metaphase

  গ

  Anaphase

  ঘ

  Telophase
• 'Linkage' was discovered by
  ক

  Blakslee

  খ

  Morgan

  গ

  Muller

  ঘ

  Bateson
• Oparin and Haldane's theory is also called
  ক

  Chemical theory of origin of life

  খ

  Modern theory of origin of life

  গ

  Naturalistic theory

  ঘ

  All of the above
• Crown-gall tumours of sunflower are caused by
  ক

  Agrobacterium

  খ

  Rhizopus

  গ

  Asperigillus

  ঘ

  Saccharomyces
• Who among the following is considered as the 'Father of evolution idea' for his ideas forwarded in his 'Poem of Nature'?
  ক

  Thales (624 - 548 BC)

  খ

  Anaximander (611 - 547 BC)

  গ

  Epicurus (341 - 270 BC)

  ঘ

  Empedocles (495 - 435 BC)
• The variations observed among plants regenerated from tissue culture have been termed as
  ক

  Inductions

  খ

  Monoclonal variations

  গ

  Somaclonal variations

  ঘ

  Terminal variations
• Which of the following isotopes, on decay, gives off γ-rays and ∝-particles only?
  ক

  ²³⁸U

  খ

  ²³⁵U

  গ

  ²³²Th

  ঘ

  ⁴⁰U
• Gregor Johann Mendel is famous for propounding
  ক

  theory of mutation

  খ

  laws of heredity

  গ

  cell theory

  ঘ

  theory of acquired characters
• Which of the following is a natural radioactive form, produced in the atmosphere?
  ক

  Radioactive carbon

  খ

  Radioactive argon

  গ

  Radioactive rubidium

  ঘ

  Radioactive strontium