School Teacher • 2017 • Technical Paper-II (Botany & Zoology)
The biopiracy case of the neem tree (Azadirachta indica) was between
A)
India and Pakistan
B)
India and U.S.
C)
India and U.K.
D)
India and China
US patent 5126? on neem by W.R. Grace 1994 challenged by India/CSIR – India vs US biopiracy case.
School Teacher • 2017 • Technical Paper-II (Botany & Zoology)
The most important hormone during parturition (gestation) is
A)
estrogen
B)
oxytocin
C)
prolactin
D)
luteinizing hormone
Oxytocin stimulates uterine contraction during parturition.
School Teacher • 2017 • Technical Paper-II (Botany & Zoology)
Find the number of triangles in the given figure.
A)
18
B)
20
C)
24
D)
27
Figure not provided; provisional 24 triangles common for such star/hex figure. [Image missing]
School Teacher • 2017 • Technical Paper-II (Botany & Zoology)
Photorespiration involves
A)
Hatch-slack cycle
B)
Calvin cycle
C)
Glycolate cycle
D)
Kreb cycle
Photorespiration is glycolate cycle in chloroplast-peroxisome-mitochondria.
School Teacher • 2017 • Technical Paper-II (Botany & Zoology)
The first product of C4 pathway is
A)
Oxaloacetic acid
B)
RuBP
C)
PGA
D)
PGAL
C4 first stable product oxaloacetic acid (4C) formed from PEP by PEP carboxylase.
School Teacher • 2017 • Technical Paper-II (Botany & Zoology)
Nitrification is the process of conversion of
A)
Nitrite to nitrate
B)
Nitrate to nitrite
C)
Nitrate to ammonia
D)
Ammonia to nitrate
Nitrification overall: NH3->NO2->NO3 by Nitrosomonas/Nitrobacter; net ammonia to nitrate.
School Teacher • 2017 • Technical Paper-II (Botany & Zoology)
Minerals are absorbed by plants
A)
In colloidal form
B)
In ionic form
C)
In solid form
D)
In precipitated form
Minerals taken up as ions dissolved in soil solution.
School Teacher • 2017 • Technical Paper-II (Botany & Zoology)
Process in which green plants synthesise food is called
A)
Photorespiration
B)
Photophosphorylation
C)
Photosynthesis
D)
Phototropism
Photosynthesis is CO2+H2O -> food in chloroplasts.
School Teacher • 2017 • Technical Paper-II (Botany & Zoology)
According to Mendel’s Law of Dominance, a cross between tall (DD) and dwarf (dd) peas will form (in the F1 generation)
A)
1 dwarf
B)
2 dwarfs
C)
3 dwarfs
D)
4 dwarfs
F1 DD x dd all Dd tall (0 dwarf); conventional F2 ratio 3 tall:1 dwarf, so 1 dwarf in 4. Option lists 1 dwarf as closest.
School Teacher • 2017 • Technical Paper-II (Botany & Zoology)
Microelements are those nutrients which
A)
May not be essential
B)
May be essential
C)
Are not essential and required in traces
D)
Are essential and required in traces
Micronutrients essential in minute quantities.
School Teacher • 2017 • Technical Paper-II (Botany & Zoology)
Insulin therapy is directly required in
A)
diabetes mellitus type 1 and type 2
B)
diabetes mellitus type 2
C)
diabetes mellitus type 1
D)
gestational diabetes
Type 1 diabetes absolute insulin deficiency requires lifelong insulin; type 2 initially managed with OHA.
School Teacher • 2017 • Technical Paper-II (Botany & Zoology)
A single gene can cause multiple phenotypic effects by a phenomenon called
A)
co-dominance
B)
recessiveness
C)
pleiotropy
D)
linkage
Pleiotropy = one gene affects multiple traits.
School Teacher • 2017 • Technical Paper-II (Botany & Zoology)
Exchange of gases in leaves takes place through
A)
Palisade
B)
Stomata
C)
Parenchyma
D)
Chloroplasts
Gas exchange via stomatal pores on leaves.
School Teacher • 2017 • Technical Paper-II (Botany & Zoology)
The water is transported up to the leaves through
A)
Cortex cells
B)
Parenchyma
C)
Xylem
D)
Phloem
Xylem conducts water and minerals upward via transpiration pull.
School Teacher • 2017 • Technical Paper-II (Botany & Zoology)
Evaporation of water from leaf cell is
A)
Transpiration
B)
Osmosis
C)
Diffusion
D)
Imbibition
Transpiration includes evaporation of water from mesophyll to atmosphere.
School Teacher • 2017 • Technical Paper-II (Botany & Zoology)
Kranz type of leaf anatomy is found in
A)
CAM plants
B)
C3 plants
C)
C4 plants
D)
All of these
Kranz anatomy with bundle sheath chloroplasts characteristic of C4 plants.
School Teacher • 2017 • Technical Paper-II (Botany & Zoology)
Oxygen is released by plants as a by-product of
A)
osmosis
B)
pinocytosis
C)
photosynthesis
D)
oxidative phosphorylation
Photolysis of water in photosynthesis releases O2 as by-product.
School Teacher • 2017 • Technical Paper-II (Botany & Zoology)
During cell division, separation of chromosome (sister chromatids) occurs during
A)
prophase
B)
metaphae
C)
anaphase
D)
telophase
Anaphase sister chromatids separate to opposite poles.
School Teacher • 2017 • Technical Paper-II (Botany & Zoology)
Below is given alternative to the underlined and italicized part which may improve the sentence. Choose the correct alternative: If the room had been brighter, I would have been able to read for a while before bed time.
A)
If the room was brighter
B)
Had the room been brighter
C)
If the room are brighter
D)
No improvement
Original 'If the room had been brighter, I would have...' is correct Type3 conditional; Had... inversion also valid but no improvement needed.
School Teacher • 2017 • Technical Paper-II (Botany & Zoology)
The term unit membrane was proposed by
A)
Robertson
B)
Nageli
C)
Singer
D)
Purkinje
J. David Robertson proposed unit membrane model in 1959 with trilaminar structure.
School Teacher • 2017 • Technical Paper-II (Botany & Zoology)
Pick up the one which is most nearly the same in meaning as the word printed in bold and can replaces it without altering the meaning of the sentence: In spite of their efforts, the team of scientists could not make much headway to solve the problem.
A)
progress
B)
thinking
C)
efforts
D)
start
Headway = advancement; synonym progress.
School Teacher • 2017 • Technical Paper-II (Botany & Zoology)
Parthenocarpic fruits means
A)
Fruit with immature seeds
B)
Seedless fruit
C)
A fruit developed without fertilization
D)
Only seeds and no fruits
Parthenocarpy = fruit development without fertilization, thus seedless; C is definition, B characteristic.
School Teacher • 2017 • Technical Paper-II (Botany & Zoology)
Entomophily refers to pollination by
A)
Wind
B)
Water
C)
Animals
D)
Insects
Entomophily = insect pollination.
School Teacher • 2017 • Technical Paper-II (Botany & Zoology)
Glycolysis is also known as
A)
Embden-Meyerhof-Paranas-Pathway
B)
Glycolate metabolism
C)
Cyclic electron transport
D)
Non-cyclic electron transport
Embden-Meyerhof-Parnas pathway.
School Teacher • 2017 • Technical Paper-II (Botany & Zoology)
The five kingdom classification was given by
A)
Linnaeus
B)
Leeuwenhoek
C)
Darwin
D)
Whittaker
R.H. Whittaker 1969 proposed five kingdoms.
