WorksheetsUntitled Quiz
Total questions: 35
Worksheet time: 18mins
Plant breeding is the ______________ of plants in order to create desired plant types.
Breeding
Manipulation
Crossing
The entire collection (of plants/seeds) having all the diverse alleles for all genes in a given crop is called
Protoplasm
Collection of variability
Germplasm collection
Plant collection
Breeding for disease resistance requires
a good source of resistance
Planned hybridisation
Diseases test
all of these
The new varieties of plants are produced by
Introduction and mutation
Selection and hybridisation
Mutation and Selection
Selection and Introduction
The noble-laureate that successfully crossed and produced the semi dwarf wheat hybrid is :
Norman E Borulag
M.S. Swaminathan
Kalyan Sona
Jaya Ratna
The rice crop hybrids that were produced in India are:
Ratna
IR – 8
Sonalika
Jaya
The botanical name of Sugarcane is:
Oryza sativum
Saccharum barberi
Pisum Sativum
Triticum
Backrossing involves crossing
Parent and parent
Hybrid and hybrid
Parent and hybrid
Agriculture accounts for __________ per cent of India's GDP
62
30
33
70
Agriculture accounts for __________ per cent of India's GDP
62
30
33
70
The botanical name of Sugarcane is:
Oryza sativum
Saccharum barberi
Pisum Sativum
Triticum
If a double stranded DNA has 20% of cytosine, what will be the percentage of adenine in it?
20%
40%
30%
60%
If the sequence of bases in one strand of DNA is ATGCATGCA what would be the sequence of bases on complementary strand?
ATGCATGCA
AUGCAUGCA
TACTACGT
UACGUACGU
Which of the following phenomena was experimentally proved by Meselson and Stahl?
Transformation
Transduction
Semi conversative DNA replication
Central dogma
Which non radioactive isotope was used by Meselson and Stahl in their experiments?
32 P
35 S
15 N
None
Which one of the following condition can cause pneumonia in mice?
Injection of R strain into mice.
Injection of heat killed R strain into mice along with heat killed S strain.
Injection of heat killed S strain into mice.
Injection of live S strain into mice or heat killed S strain along with live R strain.
Who discovered the process of transformation and on which species was it done?
Frederich Miescher, Streptococcus pneumoniae
Frederick Griffith, Streptococcus pneumoniae
Alfred Hershey, T2 Bacteriophage
Martha Chase, T2 bacteriophage
The isotopes used by Hershey and Chase to prove that DNA is the genetic material R
P32 and S35
P35 and S32
N15 and N15
N14 and N15
During biochemical characterization of transforming principle, the digestion with _______ did inhibit transformation suggesting that DNA caused the transformation.
DNAase
Protease
RNAase
DNA polymerase
The main differences between RNA and DNA in its structure are
The pentose sugar in RNA is ribose and it contains thymine.
The pentose sugar in RNA is deoxyribose and it contains cytosine.
The pentose sugar in RNA is deoxyribose and it contains uracil.
The pentose sugar in RNA is ribose and it contains uracil.
Which of the following region(s) does not code for any proteins?
(i) Introns
(ii) Exons
(iii) VNTRs
Only i and iii
Only ii and iii
Only i
All i, ii and iii
tRNA is present corresponding to each of the following specified codons, except the codon
UUU
UGG
AUG
UGA
Splicing is one of the steps of post-transcriptional modifications which occurs in
Nucleus
Cytoplasm
ER
Ribosomes
If there are 999 bases in an RNA that codes for a protein with 333 amino acids, and the base at position 901 is deleted such that the length of the RNA becomes 998 bases, how many codons will be altered?
11
33
333
1
What is the function of primer
To help DNA polymerase for initiation
To help RNA polymerase for initiation
To help DNA polymerase for termination
To help RNA polymerase for termination
During DNA replication, Okazaki fragments are used to elongate
the lagging strand towards replication fork
the leading strand away from replication fork
the lagging strand away from the replication fork
he leading strand towards replication fork.
How many significant figures are present in 0.0025
Two
Three
Four
Five
How many atoms of magnesium are present in 96u of Magnesium
0.25
25
4
0.4
The volume of 1.7g of NH3 at STP (273K, 1atm) is
1.7L
2.24L
2.8L
3.4L
Number of moles present in 22.0g of carbondioxide is
2
22
0.5
0.25
If the density of a solution is 4.5g/mL, the mass of 1.4mL solution in significant figure is
3.21g
4.5g
0.63g
6.3g
The reactant which is entirely consumed when a reaction goes to completion is called
(a)
Which is more informative?
Empirical Formula
Molecular Formula
Mass percent of phosphorus in calcium phosphate is
38.71%
20%
41.29%
28%
(a) refers to the agreement of a particular value to the true value of the result.
