WorksheetsRepro & Evolution (OYM)
Total questions: 45
Worksheet time: 34mins
All Bryophytes and Tracheophytes have originated from
Psilophyton
Zosterophyllum
Chlorophyte ancestors
Rhynia
Which of the following plants do not exist beyond Permian period of Palaeozoic era?
Bryophytes
Arborescent lycopods
Herbaceous lycopods
Ferns
Out of the animals listed below, which of the following represent the proper sequence from the earliest in the fossil record to the latest?
(a) Archeopteryx
(b) Winged insects
(c) Australopithecus
(d) Cephalopods
a, b, d, c
b, d, a, c
d, b, a, c
d, b, c, a
Choose the option where following distribution curve can be observed
Average body weight at which new born baby is more likely to survive
Selection of long necked giraffe during drought
Increase in pesticide resistance strains of mosquitoes
High frequency of melanic moths during industrialisation
Which of the following plants fell to form coal deposits slowly during the course of evolution?
Gymnosperms
Conifers
Gnetales
Giant ferns
How many of the following factors alter the gene frequency in a non-directional way?
a) Gene migration
b) Natural selection
c) Genetic drift
d) Mutation
a,c
c,d
b,c
a,b
Select the incorrect statement w.r.t. Australopithecines
They walked like gorillas about 15 mya
Essentially ate fruit
Hunted with stone weapons
Probably lived in East African grasslands
Pre historic cave paintings can be seen at Bhimbetka Rock shelter in district __A___ and are associated with __B___ prehistoric humans. Fill the blanks with correct options
A- Madhya Pradesh, B- Homo sapiens
A- Indore, B- Homo erectus
A- Raisen , B- Homo sapiens
A- Gwalior , B- Homo habilis
According to Darwin, how many of the following features suitable to an organism which are well camouflaged in its surroundings so that it checks detection by its predators
(a) Is favoured by natural selection
(b) Leaves more progeny
(c) Has higher fitness
(d) Contribute less to gene pool
a,b,c only
b,c only
a,b,d only
None of the above
Birds with average-sized wings survived in a severe storm more successfully than with longer or shorter wings. It illustrates a type of natural selection in which
More individuals acquire value other than mean character values
Single peak is obtained in the middle of distribution curve as natural selection can lead to stabilization
All individuals acquire values other than mean character value
All individuals acquire mean character value
Which of the following organism is phylogenetically close living relative of birds?
Mammals
Thecodonts
Crocodiles
Dinosaurs
“Evolution of life forms on earth had occurred but driven by use and disuse of organs”. This concept of evolution was proposed by
Charles Darwin before Lamarck
Charles Darwin after Lamarck
Lamarck after Charles Darwin
Lamarck before Charles Darwin
Read the following statements A and B and choose the correct option
Statement A: Every population has built in variation in characteristics which enable them to survive better in natural conditions.
Statement B: In a mixed population, those that can better-adapt, survive and increase in population size but no variant is completely wiped out.
Both the statements A and B are correct
Both the statements A and B are incorrect
Only statement A is correct
Only statement B is correct
Evolution is a stochastic process based on A in nature and B in the organisms
Choose the option which fill the blanks A and B correctly
A- Chance events B- Chance mutation
A- Chance mutation B- Chance events
A- Selective mating B- Convergent evolution
A- Gene migration B- Constant gene pool
According to evolutionary history of vertebrates, first homeothermic animals evolved on earth were
Amphibians
Reptiles
Birds
Mammals
Due to similar environmental pressure there are development of similar features in marsupials and placental mammals that leads to convergent evolution. Select the set of mammals which do not follow this pattern
Bobcat and tiger cat
Wombat and sugar glider
Lemur and spotted cuscus
Wolf and Tasmanian wolf
Complete the analogy
Thecodonts: crocodiles:: -----------: Mammals
Stem reptiles
Therapsids
Sauropsids
Dinosaurs
Herbivorous, horned dinosaur who performed quadrupedal locomotion was
Tyrannosaurus
Triceratops
Brachiosaurus
Stegosaurus
From his experiments, S.L. Miller produced amino acids by mixing the following in a closed flask.
CH4, H2, NH3 and water vapor at 800°C
CH4, H2, NH3 and water vapor at 600°C
CH3, H2, NH3 and water vapor at 600°C
CH3, H2, NH4 and water vapor at 800°C
Which of the following is the correct sequence of events in the origin of life?
I. Formation of protobionts
II. Synthesis of organic monomers
III. Synthesis of organic polymers
IV. Formation of DNA-based genetic systems
I, II, III, IV
I, III, II, IV
II, III, I, IV
II, III, IV, I
Which of the following refer to correct example(s) of organisms which have evolved due to changes in environment brought about by anthropogenic action? (1) Darwin’s Finches of Galapagos islands.
(2) Herbicide resistant weeds.
(3) Drug resistant eukaryotes.
(4) Man-created breeds of domesticated animals like dogs.
only (1)
(1) and (3)
(2), (3) and (4)
only (4)
Embryological support for evolution was disapproved by
Karl Ernst von Baer
Alfred Wallace
Charles Darwin
Oparin
Flippers of penguins and dolphins are examples of
adaptive radiation
convergent evolution
industrial melanism
natural selection
Which one of the following scientist’s name is correctly matched with the theory put forth by him?
De Vries - Natural selection
Mendel - Theory of Pangenesis
Pasteur - Inheritance of acquired characters
Weismann - Theory of continuity of germplasm
Variations caused by mutation, as proposed by Hugo de Vries, are
small and directional
random and directionless
random and directional
small and directionless
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?
0.16 (AA); 0.36 (Aa); 0.48 (aa)
0.36 (AA); 0.48 (Aa); 0.16 (aa)
0.16 (AA); 0.24 (Aa); 0.36 (aa)
0.16 (AA); 0.48 (Aa); 0.36 (aa)
In a species, the weight of newborn ranges from 2 to 5 kg. 97% of the newborn with an average weight between 3 to 3.3 kg survive whereas 99% of the infants born with weights from 2 to 2.5 or 4.5 to 5 kg die. Which type of selection process is taking place?
Cyclical selection
Directional selection
Stabilising selection
Disruptive selection
In a population of 1000 individuals 360 belong to genotype AA, 480 to Aa and the remaining 160 to aa. Based on this data, the frequency of allele A in the population is
0.4
0.5
0.6
0.7
At a particular locus, frequency of A allele is 0.6 and that of a is 0.4. What would be the frequency of heterozygotes in a random mating population at equilibrium?
0.36
0.16
0.24
0.48
Match the hominids with their correct brain size. (A) Homo habilis (i) 900cc
(B) Homo neanderthalensis (ii) 1350 cc
(C) Homo erectus (iii) 650-800cc
(D) Homo sapiens (iv) 1400cc
(A) (iv) (B) (iii) (C) (i) (D) (ii)
(A) (iii) (B) (i) (C) (iv) (D) (ii)
(A) (iii) (B) (ii) (C) (i) (D) (iv)
(A) (iii) (B) (iv) (C) (i) (D) (ii)
Which of the following contraceptive methods involve a role of hormone ?
Pills, Emergency contraceptives, Barrier methods
Lactational amenorrhea, Pills, Emergency contraceptives
Barrier method, Lactational amenorrhea, Pills
CuT, Pills, Emergency contraceptive
Select the hormone-releasing Intra-Uterine Devices.
Lippes Loop, Multiload 375
Vaults, LNG-20
Multiload 375, Progestasert
Progestasert, LNG-20
Which of the following is a correct statement?
IUDs once inserted need not be replaced.
IUDs are generally inserted by the user herself.
IUDs increase phagocytosis of sperms in the uterus.
IUDs suppress gametogenesis
The contraceptive ‘Saheli’
blocks estrogen receptors in the uterus, preventing eggs from getting implanted
increases the concentration of estrogen and prevents ovulation in females
is an IUD
is a post-coital contraceptive
Tubectomy is a method of sterilisation in which
small part of the fallopian tube is removed or tied up
ovaries are removed surgically
small part of vas deferens is removed or tied up
uterus is removed surgically
Which of the following is incorrect regarding vasectomy?
No sperm occurs in seminal fluid
No sperm occurs in epididymis
Vasa deferentia is cut and tied
Irreversible sterility
Which of the following approaches does not give the defined action of contraceptive?
a
b
c
d
Medical Termination of Pregnancy (MTP) is considered safe up to how many weeks of pregnancy?
8
12
18
6
Select the option including all sexually transmitted diseases.
Gonorrhoea, Syphilis, Genital herpes
Gonorrhoea, Malaria, Genital herpes
AIDS, Malaria, Filaria
Cancer, AIDS, Syphilis
Match the following sexually transmitted diseases (column I) with their causative agent (column II) and select the correct option.
Column I Column II
A. Gonorrhoea (i) HIV
B. Syphilis (ii) Neisseria
C. Genital warts (iii) Treponema
D. AIDS (iv) Human papilloma virus
A (iii) B (iv) C (i) D (ii)
A (iv) B (ii) C (iii) D (i)
A (iv) B (iii) C (ii) D (i)
A (ii) B (iii) C (iv) D (i)
In which of the following techniques, the embryos are transferred to assist those females who cannot conceive?
ZIFT & IUT
GIFT & ZIFT
ICSI & ZIFT
GIFT & ICSI
Embryo with more than 16 blastomeres formed due to in vitro fertilisation is transferred into
uterus
fallopian tube
fimbriae
cervix
Choose the odd one w.r.t ill-effects of use of contraceptive pills
Abdominal pain
Breakthrough bleeding
Irregular menstrual cycle
STI's
The world population which was around 2 billion in 1900 rocketed by how many times by 2000?
2
3
4
5
After the occurrence of fertilization which hormone prevents degeneration of corpus luteum?
Progesterone
hPL
hCG
Relaxin
