Biology Test 137

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Biology Test 137

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Weekly Quiz Competition

Question 1
4 / -1

______ is the modern bread wheat.

A
T. monococcum

B
T. aestivum

C
T. turgidum

D
T. beoticum

Solution

Common wheat (T. aestivum), also known as bread wheat, is a cultivated wheat species. About 95% of the wheat produced worldwide is common wheat, it is the most widely grown of all crops and the cereal with the highest monetary yield.

Hence, the correct option is (B).
Question 2
4 / -1

MMR vaccine is given at the age of __________.

A
1 year

B
9 months

C
2 years

D
12-15 months

Solution

CDC recommends that people get MMR vaccine to protect against measles, mumps, and rubella. Children should get two doses of MMR vaccine, starting with the first dose at 12 to 15 months of age, and the second dose at 4 through 6 years of age.

Hence, the correct option is (D)
Question 3
4 / -1

Which of the following is an incorrect match?

A
Myasthenia gravis: Autoimmune disorder affecting neuromuscular junction leading to fatigue, weakening, and paralysis of skeletal muscle

B
Muscular dystrophy: Progressive degeneration of skeletal muscles, mostly due to genetic disorder

C
Arthritis: Rapid spasms (wild contractions) in muscles due to low Ca⁺⁺ in body fluid

D
Osteoporosis: Age-related disorder characterized by decreased bone mass and increased chances of fractures

Solution

Tetany is rapid spasms (wild contractions) in muscle due to low Ca⁺⁺ in body fluid. Tetany is a symptom characterized by muscle cramps, spasms or tremors. These repetitive actions of the muscles happen when your muscle contracts uncontrollably.

Arthritis is the swelling and tenderness of one or more of your joints. The main symptoms of arthritis are joint pain and stiffness, which typically worsen with age.

Hence, the correct option is (C).

Question 4

4 / -1

Match the following and give your answer according to the given code in the option.

1.	Splicing	a.	Addition of methyl guanosine triphosphate at 5’-end
2.	Capping	b.	Addition of adenylate residues at 3’-end
3.	Tailing	c.	Removal of non-coding introns

1 - c, 2 - b, 3 - a

1 - c, 2 - a, 3 - b

1 - a, 2 - c, 3 - b

1 - b, 2 - a, 3 - c

Solution

1.	Splicing	c.	Removal of non-coding introns
2.	Capping	a.	Addition of methyl guanosine triphosphate at 5’-end
3.	Tailing	b.	Addition of adenylate residues at 3’-end

Hence, the correct option is (B).

Question 5
4 / -1

Circulatory patterns are of two types. Which of the following have an open circulatory system?

(a) Arthropods

(b) Annelids

(c) Molluscs

(d) Chordates

A
Only (a) and (b)

B
Only (a) and (c)

C
Only (a) and (d)

D
Only (b) and (d)

Solution

Arthropods, such as this bee and most mollusks, have open circulatory systems. Open circulatory systems are systems where blood, rather than being sealed tight in arteries and veins, suffuses the body and may be directly open to the environment at places such as the digestive tract.

Hence, the correct option is (B).
Question 6
4 / -1

Axial skeleton comprises 80 bones. Which of the following is/are not a part of axial skeleton?

A
Ribs

B
Sternum

C
Bones of the limbs

D
Vertebral column

Solution

The axial skeleton supports the head, neck, back, and chest and thus forms the vertical axis of the body. It consists of the skull, vertebral column (including the sacrum and coccyx), and the thoracic cage, formed by the ribs and sternum.

Hence, the correct option is (C).
Question 7
4 / -1

Which of the following fluids is used in the technique to find out chromosomal abnormalities?

A
Salivary fluid

B
Bile juice

C
Gastric juice

D
Amniotic fluid

Solution

Amniocentesis (also referred to as an amniotic fluid test or, informally, an "amnio") is a medical procedure used primarily in prenatal diagnosis of chromosomal abnormalities and fetal infections as well as for sex determination.

Hence, the correct option is (D).
Question 8
4 / -1

Which of the following statements is/are false?

a. Alleles produced by homozygotes are dissimilar.

b. The law of dominance explains the proportion of 3 : 1 obtained at the F_2.

c. Each person has any two of the three 'I' gene alleles as humans are diploid organisms.

A
Only a

B
Both a and b

C
Only b

D
Both b and c

Solution

Homozygote, an organism with identical pairs of genes (or alleles) for a specific trait. If both of the two gametes (sex cells) that fuse during fertilization carry the same form of the gene for a specific trait, the organism is said to be homozygous for that trait.
Hence, the correct option is (A)
Question 9
4 / -1

National Botanical Research Institute is situated in

A
Chennai

B
Patna

C
Bangalore

D
Lucknow

Solution

The National Botanical Research Institute (NBRI) is a research institute of CSIR in Lucknow. It is engaged in the field of taxonomy and modern biology.

Hence, the correct option is (D).
Question 10
4 / -1

In which of the following types of tissue does the inner wall of cell show the deposition of pectin?

A
Collenchyma tissue

B
Parenchyma tissue

C
Sclerenchyma tissue

D
Meristematic tissue

Solution

Collenchyma is strengthened by pectin. So the cell wall is thickened unevenly. The collenchyma cell wall is composed of a primary wall made up of cellulose and at certain places, it is deposited within a secondary wall made up of hemicellulose or pectin.

Hence, the correct option is (A).

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Biology Test 137

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Biology Test 137

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SHARING IS CARING

Question 1

T. monococcum

T. aestivum

T. turgidum

T. beoticum

Solution

Question 2

1 year

9 months

2 years

12-15 months

Solution

Question 3

Myasthenia gravis: Autoimmune disorder affecting neuromuscular junction leading to fatigue, weakening, and paralysis of skeletal muscle

Muscular dystrophy: Progressive degeneration of skeletal muscles, mostly due to genetic disorder

Arthritis: Rapid spasms (wild contractions) in muscles due to low Ca++ in body fluid

Osteoporosis: Age-related disorder characterized by decreased bone mass and increased chances of fractures

Solution

Question 4

1 - c, 2 - b, 3 - a

1 - c, 2 - a, 3 - b

1 - a, 2 - c, 3 - b

1 - b, 2 - a, 3 - c

Solution

Question 5

Only (a) and (b)

Only (a) and (c)

Only (a) and (d)

Only (b) and (d)

Solution

Question 6

Ribs

Sternum

Bones of the limbs

Vertebral column

Solution

Question 7

Salivary fluid

Bile juice

Gastric juice

Amniotic fluid

Solution

Question 8

Only a

Both a and b

Only b

Both b and c

Solution

Question 9

Chennai

Patna

Bangalore

Lucknow

Solution

Question 10

Collenchyma tissue

Parenchyma tissue

Sclerenchyma tissue

Meristematic tissue

Solution

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Arthritis: Rapid spasms (wild contractions) in muscles due to low Ca⁺⁺ in body fluid