Botany Multiple Choice Questions

By: Prof. Dr. Fazal Rehman | Last updated: April 19, 2024

1. There are ________ hydrogen bonds between thymine and adenine:
A. 4
B. 3
C. 2
D. 7

2. The eyes on potato tubers are:
A. Scars
B. Sutures
C. Rootlets
D. Nodes with buds

3. What is the stage of meiosis called in which pairing of homologous chromosomes starts?
A. Diplotene
B. Pachytene
C. Leptotene
D. Zygotene

4. Fungus excluding mycelium is:
A. Saccharomyces
B. Mucor
C. Puccinia
D. Rhizopus

5. A gene is located on the site of chromosome which is called a:
A. Site

B. Locus
C. Allele
D. Trait

6. Photorespiration involves the organelles in it which are:
A. Chloroplast, peroxisome, and glyoxysomes
B. Glyoxysomes, chloroplast, and mitochondria
C. Chloroplast, mitochondria and peroxisome
D. Mitochondria, peroxisome and glyoxysomes

7. The ratio of F2 generation in a dihybrid cross is:
A. 1:2:1
B. 1:1
C. 9:3:3:1
D. 3:1

8. Floridean starch is found in __________:
A. Phaeophyceae
B. Rhodophyceae
C. Chlorophyceae
D. Myxophyceae

9. What does the phenomenon called when a single gene has multiple effects?
A. Pleiotropy
B. Genostasis
C. Codominance
D. Epistasis

10. What is The hormone reducing transpiration rate by inducing stomatal closure called:
A. Cytokipin
B. Auxin
C. ABA
D. Ethylene

11. When was the Lamarck’s theory of evolution published?
A. 1806
B. 1802
C. 1812
D. 1809

12. The female sex organ in bryophytes is known as:
A. Antheridium
B. Archegonium
C. Ascogonium
D. Carpogonium

Read More MCQs of Botany

1. SET 1: Botany MCQs
2. SET 2: Botany MCQs
3. SET 3: Botany MCQs
4. SET 4: Botany MCQs
5. Plant Kingdom MCQs
6. Physiology Of Plants Pathogens MCQs