Home » Quizzes » Biology quiz day-7

Biology quiz day-7

Update on: 16 Apr 2019, 03:36 PM

0%

1. ASSERTION : If the species-area relationships are analysed among very large areas like the entire continents, the value of Z i.e., slope of line lies in the range of 0.1 to 0.2. REASON : The value of Z i.e., slope of line of species area relationships lies in the range of 0.6 to 1.2 when analysis is done among small areas.

a) Both ASSERTION and REASON Are True and REASON Is the Correct Explanation of ASSERTION

b) Both ASSERTION and REASON Are True but REASON Is Not the Correct Explanation of ASSERTION

c) ASSERTION Is True but REASON Is False

d) Both ASSERTION and REASON are False.

Correct! Wrong!

2. ASSERTION : GM crops can affect human health by causing allergic reactions. REASON : Transgenes in commercial crops can endanger native species e.g., the Bt toxin gene expressed in pollen might endanger pollinators like honeybees.

a) Both ASSERTION and REASON Are True and REASON Is the Correct Explanation of ASSERTION

b) Both ASSERTION and REASON Are True but REASON Is Not the Correct Explanation of ASSERTION

c) ASSERTION Is True but REASON Is False

d) Both ASSERTION and REASON are False.

Correct! Wrong!

3. ASSERTION : Restriction enzymes cut the strand of DNA to produce sticky ends. REASON : Stickiness of the ends facilitates the action of the enzyme DNA polymerase.

a) Both ASSERTION and REASON Are True and REASON Is the Correct Explanation of ASSERTION

b) Both ASSERTION and REASON Are True but REASON Is Not the Correct Explanation of ASSERTION

c) ASSERTION Is True but REASON Is False

d) Both ASSERTION and REASON are False.

Correct! Wrong!

4. ASSERTION : Mycorrhiza is a mutually beneficial association of fungus with the roots of higher plants. REASON : Mycorrhizal association of plant and fungus improve taste and shine of plant products.

a) Both ASSERTION and REASON Are True and REASON Is the Correct Explanation of ASSERTION

b) Both ASSERTION and REASON Are True but REASON Is Not the Correct Explanation of ASSERTION

c) ASSERTION Is True but REASON Is False

d) Both ASSERTION and REASON are False.

Correct! Wrong!

5. ASSERTION : Mast cells in the human body release excessive amounts of inflammatory chemicals which cause allergic reactions. REASON : Allergens in the environment on reaching human body stimulate mast cells in certain individuals.

a) Both ASSERTION and REASON Are True and REASON Is the Correct Explanation of ASSERTION

b) Both ASSERTION and REASON Are True but REASON Is Not the Correct Explanation of ASSERTION

c) ASSERTION Is True but REASON Is False

d) Both ASSERTION and REASON are False.

Correct! Wrong!

6. ASSERTION : Replication and transcription occur in the nucleus but translation occurs in the cytoplasm. REASON : mRNA is transferred from the nucleus into the cytoplasm where ribosomes and amino acids are available for protein synthesis.

a) Both ASSERTION and REASON Are True and REASON Is the Correct Explanation of ASSERTION

b) Both ASSERTION and REASON Are True but REASON Is Not the Correct Explanation of ASSERTION

c) ASSERTION Is True but REASON Is False

d) Both ASSERTION and REASON are False.

Correct! Wrong!

7. ASSERTION : Lenticels are produced by phellogen. REASON : Lenticels are aerating pores in the bark.

a) Both ASSERTION and REASON Are True and REASON Is the Correct Explanation of ASSERTION

b) Both ASSERTION and REASON Are True but REASON Is Not the Correct Explanation of ASSERTION

c) ASSERTION Is True but REASON Is False

d) Both ASSERTION and REASON are False.

Correct! Wrong!

8. ASSERTION : Sister chromatids belong to the same chromosome. REASON : Enzyme unwindase separates chromatid segments.

a) Both ASSERTION and REASON Are True and REASON Is the Correct Explanation of ASSERTION

b) Both ASSERTION and REASON Are True but REASON Is Not the Correct Explanation of ASSERTION

c) ASSERTION Is True but REASON Is False

d) Both ASSERTION and REASON are False.

Correct! Wrong!

9. ASSERTION : Nitrosomonas converts nitrites to nitrates. REASON : Nitrite ions are reduced to nitrates by Nitrosomonas in the presence of nitrate reductase.

a) Both ASSERTION and REASON Are True and REASON Is the Correct Explanation of ASSERTION

b) Both ASSERTION and REASON Are True but REASON Is Not the Correct Explanation of ASSERTION

c) ASSERTION Is True but REASON Is False

d) Both ASSERTION and REASON are False.

Correct! Wrong!

10. ASSERTION : First acceptor of CO2 in C4 plant is PEP. REASON : First acceptor of CO2 in C3 plant is RuBP.

a) Both ASSERTION and REASON Are True and REASON Is the Correct Explanation of ASSERTION

b) Both ASSERTION and REASON Are True but REASON Is Not the Correct Explanation of ASSERTION

c) ASSERTION Is True but REASON Is False

d) Both ASSERTION and REASON are False.

Correct! Wrong!

Biology quiz day-7

Read More

Good

Excellent