Zoology - Online Test

Q1. Which statement is not correct about the DNA?
Answer : Option B
Explaination / Solution:

DNA content is halved during meiosis cell division and not during mitosis cell division. Chromosome is made of DNA protein and same amount of DNA is present in all cells of an individual.

Q2. Correct sequence for decomposition process is:
Answer : Option B
Explaination / Solution:

Decomposition process involves fragmentation, leaching, catabolism and mineralization in sequence. Decomposition is essential form nutrient cycles in the ecosystem.

Q3. If TLC is 5500ml, IRV is 2950ml, ERV is 900ml and TV is 500ml then what will be value of RV ?
Answer : Option B
Explaination / Solution:

RV = TLC - IRV – ERV– TV.

substitute the values

RV = 5500-2950-900-500= 1150ml.


Q4. Cutting of anthers from the bisexual flowers of female parents is called
Answer : Option B
Explaination / Solution:

Emasculation is the technique of removing anther from bisexual flower to prevent self-pollination. The stigma is further covered with butter paper to prevent air born pollination.

Q5. Match the following:

national park
a) Shiv Puri National Park
b) Hazaribagh National Park
c) Simlipal National Park
d) Nokrek National Park
state
i) Meghalaya
ii) Orissa
iii) Jharkhand
iv) Madhya Pradesh
Answer : Option B
Explaination / Solution:

Explanation:
  • Madhav National Park is situated in Shivpuri District of Gwalior region in northwest Madhya Pradesh, India. It was named after Madho Rao Scindia, the Maharaja of Gwalior belonging to the Scindia dynasty of the Marathas.
  • Hazaribagh National Park, located 19 km from Hazaribagh, Jharkhand, India and about 135 km from Ranchi is a national park and also a wildlife sanctuary. The park has tigers, panthers, sambhars, spotted deer, bisons and a number of mammalian faunas.
  • Simlipal National Park is a national park and a tiger reserve in the Mayurbhanj district in the Indian state of Odisha.
  • Nokrek National Park, or Nokrek Biosphere Reserve, is a national park located approximately 2 km from Tura Peak in West Garo Hills district of Meghalaya, India. UNESCO added this National park to its list of Biosphere Reserves in May 2009.

Q6. Book lungs are respiratory organ of
Answer : Option A
Explaination / Solution:

Book lung is a type of respiratory organ used for atmospheric gas exchange that is found in Arachnida such as scorpions and spiders.

Q7. In most mammals, the testes are located in scrotal sac for
Answer : Option B
Explaination / Solution:

Testis is located in scrotal sac out of the abdominal cavity. Sperm formation require 1-2 degree less temperature than normal body temperature. The process of sperm formation is called spermatogenesis.

Q8. Enzymes catalysing in the link together of two compounds are
Answer : Option B
Explaination / Solution:

Ligases catalyses the linking together of 2 compounds, e.g.,enzymes which catalyse joining of C-O, C-S, C-N, P-O etc. bonds.

Q9. In our blood :

i. Granulocytes which constitutes maximum percentage of total leucocytes are neutrophils.
ii. Elevated number of neutrophils in blood indicates an acute infection such as appendicitis.
Answer : Option B
Explaination / Solution:

In human blood, granulocytes and agranulocytes types of leucocytes are present. Neutrophils constitute the maximum percentage of total WBCs. Sharp increase in number of neutrophils in blood indicates an acute infection such as appendicitis.

Q10. Treatment of waste water is done by
Answer : Option C
Explaination / Solution:

Treatment of waste water is done by the heterotrophic microbes naturally present in the sewage. This treatment is carried out in two stages: primary treatment and secondary treatment.