Question # 1

Why molds can grow on oranges and jelly kept in refrigerator where generally bacteria cannot reach

Choose an answer

They are well adapted to live on land

Hyphae are modified

They can tolerate temperature extremes minus 5 degree centigrade below freezing and 50 degree centigrade or more

They have rhizoids

Largest family of angiosperm

Choose an answer

Crucifereae

Compositeae

Ranunculaceae

Cucurbitaceae

The specimen designated by the author as type specimen is

Choose an answer

Holotype

Isotype

Lectotype

Syntype

In ---------- stems & roots of plants increase in diameter

Choose an answer

Primary growth

Secondary growth

Permanent growth

Apical growth

A special protein that generates voltage across a membrane is called;

Choose an answer

Electrochemical protein

Electromagnetic Protein

Electrogenic protein

Proteogenic protein

Which statement is not true about the family Euphorbiaceae?

Choose an answer

Self and cross

Insect and cross

Self and insect

Self and wind

The oxidative change of water in photo-chemical excitation occurs in a process

Choose an answer

Photo-reaction

Phosphorylation

Photo-oxidation

None

Gene pool is the total aggregate of gene a ----------- at any one time.

Choose an answer

Individual

Population

DNA

Chromosome

In Aerobic respiration, the waste product in plants is produced in the form of

Choose an answer

Uric acid

CO₂

Walter

Ammonia

Both b & c

Saccharomyces cervisiae is the most commonly exploited yeast which feature highlights their economic improtance

Choose an answer

Asexual reproduction

Unicellular

They ferment carbohydrate to ethanol and carbon dioxide

Sexual reproduction

The principle stage of nitrogen cycle include all of the following except

Choose an answer

Ammonification

Nitrification

Assimilation

Nitrogen depletion

A sex limited trait is limited to only one sex due to

Choose an answer

Taxonomic differences

Ecological differences

Physiological

Anatomical difference

Cryptostegiagrandiflorais a cultivated ----------- growing in gardens.

Choose an answer

Herb

Shrub

Grass

Climber

Match with Lamarckism

Choose an answer

Inheritance of acquired characteristics

Long neck of giraffe is evolved gradually as cumulative product of many generations

Body parts used extensively become stronger and larger

All A, B and C

It is a specimen chosen by later worked from original material studied by the author of the species

Choose an answer

Holotype

Syntype

Isotype

Lecto type

If two substances move in different directions, through the membrane, the contransport is called;

Choose an answer

Antiplast

Heteroplast

Apoplast

None

Ray florets have ------------ flowers

Choose an answer

Tubular

Ligulate

Round

None

Seed of family Ranunculaceae is

Choose an answer

Endospermic

Endosperm oily

pericarp

Both a and b

The non-protein part covalently bonded to enzyme is

Choose an answer

APO-enzyme

Coenzymes

Co-factor

None

Raphanussativusis the botanical name of

Choose an answer

Radish

Cabbage

Wall fruit

Wall cress

Translator consists of two parts

Choose an answer

Corpusculum and a pair of arms

Gynoestigium and polonium

Androecium and gynoecium

Gynoestigium and corpusculum

What are the major decomposers of the biosphere contributing to the recycling of the elements used by living things?

Choose an answer

Saprobic fungi and bacteria

Plants

Animals

Algae

Nullo gamete is

Choose an answer

With one sex chromosome

With one sex chromosome present

With no sex chromosome

Without any chromosome

--------------- are the plants that flower only once and then die

Choose an answer

Monocarpic

Dicarpic

Apocarpic

holocarpic

More Classes

Other Links

NAT-IIB Biological Science Botany Hard Test MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer