NTS/NTS CURRENT AFFAIRS BOTONY MCQ SET 1 Sample Test,Sample questions

Question:
A baby has been born with a small tail. It is the case exhibiting

1.mutation

2.retrogressive evolution

3.metamorphosis

4.atavism

Posted Date:-2021-08-17 23:39:12


Question:
A gene showing codominance

1.has one allele dominant to the other

2.has both alleles independently expressed in the heterozygote

3.has alleles tightly linked on the same chromosome

4.has alleles expressed at the same time in development

Posted Date:-2021-08-17 23:39:12


Question:
Algae is a nonvalid taxinomic term that refers to

1.eukaryotic organisms that have chlorophyll a and produce O2

2.well developed cellular structure including a conducting system

3.both a and b

4.none of these

Posted Date:-2021-08-17 23:39:12


Question:
Antheridia of Funaria are

1.rounded

2.cylindrical

3.club shaped

4.oval

Posted Date:-2021-08-17 23:39:12


Question:
Autoecology deals with

1.ecology of species

2.ecology of many species

3.ecology of community

4.all of these

Posted Date:-2021-08-17 23:39:12


Question:
Bioluminescence is a phenomenon associated with

1.pyrrophyta

2.chlorophyta

3.chrysophyta

4.phaeophyta

Posted Date:-2021-08-17 23:39:12


Question:
Calvin cycle is a light-independent process that plants use to convert _____ into glucose.

1.oxygen

2.carbon dioxide

3.water

4.salt

Posted Date:-2021-08-17 23:39:12


Question:
Characteristics used to place algae into divisions include all of the following except

1.form of storage material

2.flagella number and location

3.accessory pigments used in photosynthesis

4.all of these

Posted Date:-2021-08-17 23:39:12


Question:
De Vries gave his mutation theory on organic evolution while working on

1.Oenothera lamarckiana

2.Drosophila melanogaster

3.Pisum sativum

4.Althea rosea

Posted Date:-2021-08-17 23:39:12


Question:
Development of gametophyte from vegetative cells of a sporophyte is called

1.apogamy

2.apospory

3.parthenogenesis

4.apomixis

Posted Date:-2021-08-17 23:39:12


Question:
Ecotype is a type of species in which environmentally induced variations are

1.temporary

2.genetically fixed

3.genetically not related

4.none of the above

Posted Date:-2021-08-17 23:39:12


Question:
Energy flow in ecosystem is

1.unidirectional

2.bidirectional

3.multidirectional

4.none of these

Posted Date:-2021-08-17 23:39:12


Question:
Experiments demonstrating the importance of nucleus in controlling the growth of cell was performed in

1.starfish

2.acetabularia

3.neurospora

4.planaria

Posted Date:-2021-08-17 23:39:12


Question:
False indusium is found in

1.dryopteris

2.pteris

3.funaria

4.all of these

Posted Date:-2021-08-17 23:39:12


Question:
Gymnosperms differ from both extinct and extant ferns because they

1.are woody

2.have macrophylls

3.have pollen

4.have sporophylls

Posted Date:-2021-08-17 23:39:12


Question:
In a food chain of grassland ecosystem the top consumers are

1.herbivores

2.carnivores

3.bacteria

4.none of these

Posted Date:-2021-08-17 23:39:12


Question:
In a moss the sporophyte

1.arises from a spore produced from the gametophyte

2.produces gametes that given rise to the gametophyte

3.is partially parasitic on the gametophyte

4.manufactures food for itself, as well as for the gametophyte

Posted Date:-2021-08-17 23:39:12


Question:
In higher plants the shape of chloroplast is

1.girdle shape

2.discoid

3.ribbon shaped

4.cup shaped

Posted Date:-2021-08-17 23:39:12


Question:
In mosses the gametophyte is

1.monoecious

2.dioecious

3.both a and b

4.heterothallic

Posted Date:-2021-08-17 23:39:12


Question:
In terms of alternation of generations, the internal parts of the pollen grains of seed-producing plants are most similar to a

1.fern gametophyte bearing only antheridia

2.hermaphroditic fern gametophyte

3.fern sporophyte

4.moss sporophyte

Posted Date:-2021-08-17 23:39:12


Question:
In the sporophyll of Selaginella, sporangia are born on

1.abaxial surface

2.lower surface

3.adaxial surface

4.margins

Posted Date:-2021-08-17 23:39:12


Question:
Indole 3-acetic acid is chemically similar to be amino acid

1.methionine

2.valine

3.proline

4.tryptophan

Posted Date:-2021-08-17 23:39:12


Question:
Mendel emasculated garden pea plant.Emasculation is the

1.removal of flower buds

2.removal of anthers before dehiscence

3.removal of carpels before dehiscence

4.removal of mature flowers

Posted Date:-2021-08-17 23:39:12


Question:
One of the important consequences of geographical isolation is

1.random creation of new species

2.no change in the isolated fauna

3.preventing Speciation

4.speciation through reproductive isolation

Posted Date:-2021-08-17 23:39:12


Question:
Plant cell wall mainly composed of

1.cellulose

2.starch

3.protein

4.lipid

Posted Date:-2021-08-17 23:39:12


Question:
Presence of trichomes on leaves

1.helps in rapid gaseous exchange

2.prevents guttation

3.increases transpiration

4.reduces transpiration

Posted Date:-2021-08-17 23:39:12


Question:
Sterile jacket around the sex organs is found in

1.algae

2.fungi

3.bryophytes

4.lichens

Posted Date:-2021-08-17 23:39:12


Question:
The algae Chlamydomonas demonstrates a complex life cycle that switches between haploid and diploid forms. This life cycle is called

1.the sexual-asexual exchange

2.the transposition cycle

3.an alternation of generations

4.algal transformation

Posted Date:-2021-08-17 23:39:12


Question:
The bread mold Rhizopus stolonifer belongs to which of the following fungal divisions

1.deuteromycota

2.ascomycota

3.zygomycota

4.oomycota

Posted Date:-2021-08-17 23:39:12


Question:
The characteristic of C4 plants is

1.first product oxaloacetic acid

2.carboxylating enzyme is RUBISCO

3.Krans anatomy

4.all of these

Posted Date:-2021-08-17 23:39:12


Question:
The crossing of F1 to any one of the parents is called

1.test cross

2.F1 cross

3.back cross

4.none of these

Posted Date:-2021-08-17 23:39:12


Question:
The fruiting body of a mushroom is called

1.sorocarps

2.ascocarps

3.basidiocarps

4.deuterocarp

Posted Date:-2021-08-17 23:39:12


Question:
The genotypic ratio of a monohybrid cross is

1. 3:1

2.1:2:1

3. 2:1:1

4.9:3:3:1

Posted Date:-2021-08-17 23:39:12


Question:
The membrane around the vacuole

1.tonoplast

2.cytoplast

3.sarcolemma

4.none of these

Posted Date:-2021-08-17 23:39:12


Question:
The only positive evidence of aquatic ancestry of bryophyte is

1.thread like protonema

2.green colour

3.some forms are still aquatic

4.ciliated sperms

Posted Date:-2021-08-17 23:39:12


Question:
The recessive character will express in

1.F1

2.F2

3.both a and b

4.F3

Posted Date:-2021-08-17 23:39:12


Question:
The seed coats most important function is to provide

1.desiccation resistance

2.a nutrient supply for the embryo

3.dormancy

4.the means for dispersal

Posted Date:-2021-08-17 23:39:12


Question:
The tendency of population to remain in genetic equilibrium may be disturbed by

1.random mating

2.lack of random mating

3.lack of mutations

4.lack of migration

Posted Date:-2021-08-17 23:39:12


Question:
Trophic levels are formed by

1.only plants

2.only animals

3.only carnivores

4.organisms linked in food chain

Posted Date:-2021-08-17 23:39:12


Question:
Water molds belong to which division

1.ascomycota

2.basidiomycota

3.deuteromycota

4.oomycota

Posted Date:-2021-08-17 23:39:12


Question:
What causes a green plant to bend towards light as it grows

1.because green plants are phototropic

2.light stimulates plant cells on the lighted side to grow faster

3.auxins accumulates on shaded side resulting greater cell elongation

4.naturally plant grows towards light

Posted Date:-2021-08-17 23:39:12


Question:
What is meant by the term Darwin fitness

1.the ability to survive and reproduce

2.high aggressiveness

3.healthy appearance

4.none of these

Posted Date:-2021-08-17 23:39:12


Question:
Which of the following is an ongoing trend in the evolution of land plants

1.decrease in the size of the leaf

2.elimination of sperm cells or sperm nuclei

3.replacement of roots by rhizoids

4.reduction of the gametophyte phase of the life cycle

Posted Date:-2021-08-17 23:39:12


Question:
Which of the following is called Walking Fern?

1.dryopteris

2.adiantum

3.aspidium

4.pteris

Posted Date:-2021-08-17 23:39:12


Question:
Which of the following most closely represents the male gametophyte of seed-bearing plants

1.ovule

2.microspore mother cell

3.embryo sac

4.pollen grain interior

Posted Date:-2021-08-17 23:39:12


Question:
Which one is the non-membranous organelle

1.endoplasmic reticulum

2.ribosome

3.chloroplast

4.nucleus

Posted Date:-2021-08-17 23:39:12


Question:
Which spore is on a club and results from the fusion of two nuclei from different strains of the same fungi

1.conidiospore

2.blastospore

3.ascospore

4.basidiospore

Posted Date:-2021-08-17 23:39:12


Question:
Who suggested that the opening and closing of stomata is connected with the change on pH of guard cells

1.Von Mohl

2.Sayre/Scarth

3.Levitt

4.Lyond

Posted Date:-2021-08-17 23:39:12


Question:
yathaea and Celeotium are the e.g. of

1.grass

2.tree fern

3.walking fern

4.none of these

Posted Date:-2021-08-17 23:39:12


Question:
Zooxanthellae are algal symbiont that live within coral reef animals. These algae belong to

1.chlorophyta

2.chrysophyta

3.pyrrophyta

4.rhodophyta

Posted Date:-2021-08-17 23:39:12


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