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Hassan
1.The diagram which shows the arrangement of metaphasic chromosomes according to their position of centromere is called
A. Histogram
B. Karyogram
C. Dendrogram
D. Histogram
2.Which of the following designation has given to human female chromosomes?
A. XX
B. XY
C. XO
D. XX
3.Growth regulators, which control plant growth and development are called?
A. Secondary metabolites
B. Macro element
C. Nonessential elements
D. Secondary metabolites
4.Which of the following is NOT a plant hormone?
A. Corticosteroid
B. Brassinosteroid
C. Polyamines
D. Corticosteroid
5.Name the plant in which auxin was first discovered?
A. Mustard
B. Pea
C. Oats
D. Mustard
6.Which of the following is NOT a naturally occurring auxin?
A. Indole 3-acetic acid (IAA)
B. Indole 3-butyric acid (IBA)
C. Phenyl acetic acid (PAA)
D. Indole 3-acetic acid (IAA)
7.Name the amino acid which acts as a precursor of auxin biosynthesis?
A. Serine
B. Tryptophan
C. Valline
D. Serine
8.Mark the one, which is NOT a physiological effect of auxin?
A. Cell elongation
B. Stem elongation
C. Cell differentiation
D. Cell elongation
9.Name the site of Gibberellins synthesis?
A. Endosperm
B. Coleoptile tip
C. Young leaves
D. Endosperm
10.Gibberellin that is synthesized in the shoot transported to different parts of the plant by which medium?
A. Xylem
B. Sieve tube
C. Aleurone layer
D. Xylem
11.What is bolting?
A. Internode elongation
B. Rooting
C. Shooting
D. Internode elongation
12.Which of the following plant hormone is responsible for seed germination?
A. Auxin
B. Gibberellin
C. Ethylene
D. Auxin
13.Name the first naturally occurring cytokines?
A. Neoxanthin
B. Xanthoxin
C. Zeatin
D. Neoxanthin
14.Which of the following plant hormone causes a delay in leaf senescence?
A. Abscisic acid
B. Ethylene
C. Auxin
D. Abscisic acid
15.Name the stress hormone of the plant.
A. Brassinosteroid
B. Abscisic acid
C. Cytokines
D. Brassinosteroid
16. Which one of the following is NOT covered under Taxonomy?
A. Alpha taxonomy
B. Beta taxonomy
C. Delta taxonomy
D. Alpha taxonomy
17.Organizing taxonomic information in logical classification is called?
A. Systematics
B. Phenetic
C. Phylogenetic
D. Systematics
18.Name the philosopher who first classified organisms?
A. Whittekar
B. Carl woese
C. Linnaeus
D. Whittekar
19.Name the organization which provides rules for naming animals?
A. ICZN
B. ICN
C. ICBN
D. ICZN
20.Who is considered as the father of taxonomy?
A. Aristotle
B. Linnaeus
C. Earnst Haeckel
D. Aristotle
21.What is tautonym?
A. These are the repeated sequences
B. It is a name of fish
C. Identical name of genus and species
D. These are the repeated sequences
22.What is the term given to a duplicate specimen of original type?
A. Lectotype
B. Holotype
C. Isotype
D. Lectotype
23.The general structure of all amino acids are same except for?
A. Lysine
B. Glycine
C. Proline
D. Lysine
24.Which of these amino acids are not optically active?
A. Cysteine
B. Lysine
C. Arginine
D. Cysteine
25.Which of these are used to measure optical activity?
A. Polarimeter
B. Planometer
C. Psychrometer
D. Polarimeter
26.A solution of L-alanine (4.0g/50 ml of 6 N HCl) has a rotation of +1.61° in a 2dm polarimeter tube. Calculate the specific rotation of L-alanine in 6 N HCl.
A. +15.1°
B. +10.1°
C. +11.1°
D. +15.1°
27. Name the amino acid, which exists in two non-superimposable mirror images of each other?
A. Epimer
B. Anomer
C. Enantiomer
D. Epimer
28.Which of these are rare amino acid in a protein?
A. Leucine and serine
B. Lysine and glutamic acid
C. Tryptophan and methionine
D. Leucine and serine
29.In which amino acid Imidazole group, an aromatic ring found?
A. Lysine
B. Arginine
C. Histidine
D. Lysine
30.What is the maximum wavelength that Tryptophan and tyrosine absorb?
A. 280nm
B. 260nm
C. 257nm
D. 280nm
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