BOTANY PG TRB PREPARATION ONLINE TEST - 9

Botany PGTRB Online Test

1. Different forms of a gene are called
A) heterozygotes
B) alleles
C) complementary genes
D)supplementary gens
2. Genes that can only expressed in the presence of other genes are
A) Complementary genes
B) Duplicate genes
C) Linked genes
D) Supplementary genes
3. In a pond ecosystem, which one of the following is the producer
A) Zooplankton
B) Phytoplankton
C) Periphyton
D) Nekton
4. Gypsum is used in the case of soils which are
A) saline
B) alkaline
C) water logged
D) Clayey
5. Anemometer is used to measure
A) wind velocity
B) rainfall
C) humidity
D) light intensity
6. Phytochrome is involved in
A) Phototropism
B) Photorespiration
C) Photoperiodism
D) Geotropism
7. Emasculation is
A) removal of calys
B) removal of anther from flower
C) removal of petals
D)removal of ovary
8. Cork cambium in stem is derived from
A) Vascular cambium
B) Phellogen
C) Cortes
D) Pericycle
9. Sieve tubes are found in
A) Meristems
B)Phloem
C) Xylem
D) Pollen tube
10. Cell divisions that takes place in cells of root tip is
A) Amitosis
B) Mitosis
C) Meiosis
D) Endomitosis
11. The genetic code of DNA is carried from the nucleus to ribosome by
A) t RAN
B) m RNA
C) s RNA
D) ATP
12. Glycolysis ends with
A) Pyruvic acid
B) Lactic acid
C) Succinic acid
D) Glucose
13. Which is a C4 Plant
A) Papaya
B) Potato
C) Pea
D) Maize
14. The simple proteins 'glutelins'are found in
A) Wheat
B) Rice
C) Maize
D) Sorghum
15. Theory of inheritance of acquired characers was given by
A) Wallace
B) Lamarck
C)Darwin
D) De Vries
16. Fossils in which organic materials are replaced by mineral matters are
A) Compressions
B) Moulds
C) Petrifications
D) Impressions
17. Anatropous ovule is found in
A) Polygonum
B) Capparis
C) Tridax
D) Butomus
18. First act in taxonomy is
A) Preservation
B) Identification
C) Naming
D) Classification
19. Psedoelaters are present in
A) Targionia
B) Riccia
C) Marchantia
D) Anthoceros
20. In funaria, calyptra is derived from
A) Antheridium
B) Columella
C) Capsule
D) Archegonium
Score =
Correct answers: