Which part of the animal virus is not produced in multiple copies?
Capsid
Proteins
Envelops
Ribosome
Viroids have
ssRNA not enclosed by a protein coat
ssDNA not enclosed by a protein coat
dsDNA enclosed by a protein coat
dsRNA enclosed by protein coat
Biotic potential or potential natality means
Natural increase of population under ideal/optimum conditions
The potential of the organism in a biome
Number of organisms in a biome
Species of maximum number in a population
The world’s highly prized wool yielding ‘Pashmina’ breed is
Sheep
Goat
Goat-sheep cross
Kashmiri sheep-Afghan sheep cross
Probes, used in DNA fingerprinting, are initially
Single-stranded RNA
Mini-satellite
19base long oligonucleotide
All of the above
B.
Mini-satellite
Probes used for DNA fingerprinting are usually prepared from mini-satellite or microsatellite DNA.
Satellite DNA is a useful tool in
Organ transplantation
Sex determination
Forensic science
Genetic engineering
Match the following columns and choose the correct option.
Column I | Column II |
A. Mutation Breeding | 1. The laborious and expensive process to obtain gene variation. |
B. Selection | 2. Hybrid vigour can be maintained for several generations |
C. Hybridisation | 3. Simplest and easiest method of plant improvement. |
D. Introduction | Oldest breeding method |
A quick method to obtain gene variation |
A-5, B-4, C-1, D-2
A-5, B-4, C-1, D-3
A-4, B-2, C-3, D-1
A-1, B-2, C-4, D-5
Stability of ecosystem depends upon
Primary productivity
Interchange between producers and consumers
Number of producers
Number of consumers
Which of the following is not true for a species?
Members of a species can interbreed
Variations occur among members of species
Each species is reproductively isolated from every other species
Gene flow does not occur between the populations of a species