Olete.in – MCQs, Mock Tests & Government Job Prep | NEET Test Series-2021 to 2022 Neet Online Test Series -Jan 2021(Biology)

Recently discovered only proteinous pathogenic particle is

1. Virion
2. Protovirus
3. Prion
4. Protoprotein

✅ Correct Answer: 3

Prion are

1. Proteins with 254 amino acids
2. Proteins with 254 amino kito acids
3. Proteins with 254 amino Hydro acids
4. None

✅ Correct Answer: 1

Stanley Prusiner discovered

1. Virion
2. Protovirus
3. Prion
4. Protoprotein

✅ Correct Answer: 3

An orchid flower resembles the shape of a female fly so as to be able to get pollinated .this is an example of

1. Adapatation
2. Homeostasis
3. Pseudocopulation
4. Pseudopollination

✅ Correct Answer: 1

A sexual reproduction take place by only

1. Zoospore
2. BioSpore
3. both
4. none

✅ Correct Answer: 1

Nucleus is present only in eukaryotes.

1. true
2. false
3.
4.

✅ Correct Answer: 1

Coenogametangia are gametangia with

1. Multiple Gametes
2. Single Gametes
3. both
4. none

✅ Correct Answer: 1

Which of the following is not associated with albugo ?

1. Asexual reproduction takes place by only zoospore .
2. It is obligate parasite.
3. It is parasitic on mustard.
4. none

✅ Correct Answer: 1

Which of the following is not matched correctly ?

1. Cleviceps - Ascopore
2. Puccinia - Basidiospore
3. Trichoderma - Ascorpore
4. none

✅ Correct Answer: 4

In Rhizopus sexual fusion takes place between

1. Two gametes
2. Two coenogametangia
3. Two hyphae
4. Two sporangia

✅ Correct Answer: 2

Chloroplast of Chlamydomonas is

1. Stellate
2. Cup-shaped
3. Collar-shaped
4. Sprila

✅ Correct Answer: 2

The main purpose that the aerenchyma serves in Parenchyma is

1. Offers flexibility
2. Renders Buoyancy
3. Provides structural framework
4. Provides mechanical support

✅ Correct Answer: 2

Which of this is not a function that Parenchyma performs

1. Stores nutrients and food
2. Aids in regeneration, healing and repairs wounds
3. Provides foundation and support
4. None of these

✅ Correct Answer: 4

The tissue that provides maximum mechanical strength to the plant is

1. Xylem
2. Phloem
3. Parenchyma
4. Collenchyma

✅ Correct Answer: 1

Parenchyma cells in the spongy mesophyll exhibit large intercellular spaces promoting:

1. To become nutrients for the future germinating embryo
2. Greater exposure to carbon dioxide
3. To distribute pressure evenly through the structure
4. No specific reason

✅ Correct Answer: 2

Vessels are found in

1. Most of the angiosperms and few gymnosperms
2. All angiosperms and some gymnosperms
3. All angiosperms, all gymnosperms and some pteridophytes
4. All pteridophytes

✅ Correct Answer: 1

The main difference between parenchyma, collenchyma and sclerenchyma is that

1. Parenchyma is involved in photosynthesis, secretion and storage
2. Collenchyma is involved in support and transportation of nutrients
3. Sclerenchyma is involved in support, protection, transportation of nutrients and water
4. All of these

✅ Correct Answer: 4

Amongst honey bees, the workers are:

1. Female
2. Male
3. Both females and males
4. Hermaphrodite

✅ Correct Answer: 1

The generic name of which of these is Apis?

1. Fish
2. Honey bee
3. Lac insect
4. Prawn

✅ Correct Answer: 2

Apis dorsata is used to refer to

1. Little bee
2. Indian bee
3. European bee
4. Rock bee

✅ Correct Answer: 4

The honey bee is of greatest use to mankind as:

1. It is of medicinal benefits
2. Helps in cross-pollination
3. We get honey from them
4. None of these

✅ Correct Answer: 2

Nature of honey is

1. Acidic
2. Alkaline
3. Neutral
4. Turns basic after a few days

✅ Correct Answer: 1

Honey is

1. Nectar of a flower
2. Nectar stored in the honey sac
3. Nectar mixed with saliva and stored in the honey sac
4. Nectar and water sucked by honey bee

✅ Correct Answer: 3

The bee carries the pollen back to its colony on

1. Its body
2. Its middle legs
3. Its front legs
4. Its rear legs

✅ Correct Answer: 4

The chief constituent of honey is

1. Disaccharides
2. Monosaccharide
3. Polysaccharides
4. Fats

✅ Correct Answer: 2

For how long does a worker bee live in the summer?

1. For 2 weeks
2. For 2 months
3. For 4 months
4. For 6 months

✅ Correct Answer: 2

The development of a male bee (drone) takes how long?

1. 16 days
2. 19 days
3. 22 days
4. 24 days

✅ Correct Answer: 4

Amniocentesis, chorionic villi and alpha-fetoprotein sampling are performed to determine_____.

1. The most likely date of birth of the foetus
2. Whether the baby will be normal or abnormal
3. Whether the mother has a genetic abnormality
4. A and B

✅ Correct Answer: 2

Which of the following tests cannot be examined by Amniocentesis procedure?

1. Chromosome analysis
2. Detecting genetic defects
3. Maturity of fetal lungs
4. None of these

✅ Correct Answer: 4

The fluid sample required for performing the Amniocentesis test is ________.

1. The amnion
2. The placenta
3. The liquid surrounding the immediate fetus
4. All of the above

✅ Correct Answer: 3