Solotutes logo SoloTutes

biology MCQs with Explanations - Chapter-wise Practice Questions

Q. 15 of Quiz- (Que-ID : 2858)

Endospermic seeds are found in

  • castor
  • barley
  • Coconut
  • All of these

Discuss View Answer

Q. 6 of Quiz- (Que-ID : 3024)

Opening of floral buds into flowers, is a type of:

  • Autonomic movement of variation
  • Autonomic movement of locomotion
  • Autonomic movement of growth
  • Paratonic movement of growth

Discuss View Answer

Q. 3 of Quiz- (Que-ID : 2616)

Where is paratoid salivary gland is situated

  • Lower jaw
  • Below tongue
  • Upper jaw
  • Cheek

Discuss View Answer

Q. 14 of Quiz- (Que-ID : 3232)

The coloured part of a Bougainuillea flower is the

  • corolla
  • calyx
  • bracts
  • androecium

Discuss View Answer

Q. 20 of Quiz- (Que-ID : 3413)

Two microbes found tb be very useful in Genetic Engineering are

  • Excherichia coli and Agrobacterium tumefaciens
  • Vibrio cholarae and a tailed bacteriophage
  • Diplococcus sp. and Pseudomonas sp.
  • Crown gall bacterium and Caenorhabdities elegans

Discuss View Answer

Q. 25 of Quiz- (Que-ID : 2668)

which among the following is responsible to shift o2 dissociation curve right

  • High Pco2
  • Low pco2
  • Low H+
  • None of the above

Discuss View Answer

Q. 5 of Quiz- (Que-ID : 3248)

Choose the correct pair.

  • Hippocampus – 3-chambered heart
  • Rana – 2-chambered heart
  • Crocodilus – 4-chambered heart
  • Pavo – 3-chambered heart

Discuss View Answer

Q. 19 of Quiz- (Que-ID : 2862)

Feathery stigma occurs in

  • pea
  • wheat
  • Datura
  • Caesalpinia

Discuss View Answer

Q. 1 of Quiz- (Que-ID : 3519)

Which chemical substance affects the Ozone Layer?

  • Chlorofluorocarbon
  • Chlorine
  • Hexafluorocarbon
  • Molecular Carbon

Discuss View Answer

Q. 2 of Quiz- (Que-ID : 3045)

Angiosperm pollen is generally released at the

  • 1 – celled stage
  • 2 – celled stage
  • 3 – celled stage
  • male gamete formation stage

Discuss View Answer

Q. 1 of Quiz- (Que-ID : 3369)

Integrated Pest Management (IPM) discourages the excessive used of

  • biological methods
  • chemical pesticides
  • mechanical methods
  • all of these

Discuss View Answer

Q. 24 of Quiz- (Que-ID : 3267)

the excretory product of Ascaris is

  • Urea
  • Ammonia
  • Both A and B
  • None

Discuss View Answer

Q. 1 of Quiz- (Que-ID : 3219)

In tamarind, the pinnate leaf is

  • bipinnate
  • tripinnate
  • paripinnate
  • imparipinnate

Discuss View Answer

Q. 19 of Quiz- (Que-ID : 3462)

Science linking heredity with environment is:

  • Ecology
  • Ecophysiology
  • Genecology
  • Genetics

Discuss View Answer

Q. 12 of Quiz- (Que-ID : 2705)

Which of these contain ATP and ATPase binding site

  • Actin
  • Myosin
  • Both a and b
  • None of the above

Discuss View Answer

Q. 2 of Quiz- (Que-ID : 2820)

Which of the following options shows bisexual animals only?

  • Amoeba, sponge, leech
  • Sponge, cockroach, Amoeba
  • Earthworm, sponge, leech
  • Tapeworm, earthworm, honeybee

Discuss View Answer

Q. 25 of Quiz- (Que-ID : 3068)

Most of the enzymes of the TCA cycle are present in

  • Intermembrane space of mitochondria
  • Mitochondrial matrix
  • Inner membrane of mitochondria
  • Cytoplasm

Discuss View Answer

Q. 3 of Quiz- (Que-ID : 2671)

What is life span of RBC in days

  • 120
  • 110
  • 115
  • 125

Discuss View Answer

Q. 7 of Quiz- (Que-ID : 3375)

Biofertilisers are the living organisms which

  • bring about soil nutrient enrichment
  • maximise the ecological benefits
  • minimise the environmental hazards
  • all of these

Discuss View Answer

Q. 13 of Quiz- (Que-ID : 3356)

Artificial insemination involves

  • super ovulation
  • semen collection
  • egg collection
  • embryo collection

Discuss View Answer

Q. 16 of Quiz- (Que-ID : 3359)

Multiple ovulation embryo transfer technology is related to

  • transfer of super embryo
  • transfer of super eggs
  • super ovulation and embryo transfer
  • both (a) and (b)

Discuss View Answer

Q. 18 of Quiz- (Que-ID : 2911)

In humans, at the end of the first meiotic division, the male germ cells differentiate into the

  • spermatids
  • spermatogonia
  • primary spermatocytes
  • secondary spermatocytes

Discuss View Answer

Q. 22 of Quiz- (Que-ID : 3190)

The most abundant type of animal tissue in the complex animals is

  • Muscle tissue
  • Nervous tissue
  • Connective tissue
  • Epithelial tissue

Discuss View Answer

Q. 16 of Quiz- (Que-ID : 3234)

The arrangement of sepals or petals in floral bud is called

  • Placentation
  • Aestivation
  • Bracteate
  • Phyllotaxy

Discuss View Answer

Q. 11 of Quiz- (Que-ID : 2954)

If the base sequence of a codon in mRNA is 5’ – AUG – 3′ the sequence of tRNA pairing with it must be

  • 5’ – UAC – 3’
  • 5’ – CAU – 3’
  • 5’-AUG – 3’
  • 5’ – GUA – 3’

Discuss View Answer

Q. 11 of Quiz- (Que-ID : 3304)

Which one of the following scientist’s name is correctly matched with the theory put forth by him ?

  • de Vries – Theory of natural selection
  • Darwin – Theory of pangenesis
  • Weismann – Theory of continuity of germplasm
  • Pasteur – Theory of inheritance of acquired charcters

Discuss View Answer

Q. 10 of Quiz- (Que-ID : 2853)

An embryo may sometimes develop from any cell of embryo sac other than egg. It is termed as

  • apospory
  • apogamy
  • parthenogenesis
  • parthenocarpy

Discuss View Answer

Q. 10 of Quiz- (Que-ID : 3353)

Which of the following is an example of a cross-breed ?

  • Mule
  • Hilsa
  • Hisardale
  • Sahiwal

Discuss View Answer