Due to alcohol abuse, brain-related disease Korsakkoff’s syndrome occurs. Which nutrient is responsible for this syndrome?
Vitamin-B12
Fat
Protein
Vitamin-B1
Who received Nobel Prize in 2008 for the discovery of HIV?
Harald Zur Hausen
Luc Montagnier
Jack Szostak
Carol Greider
Which one of the following is a reorganization site for restriction enzymeBam HI?
5ʹ– GAATTC – 3ʹ 3ʹ – CTTAAG – 5ʹ
5ʹ – GGATCC – 3ʹ 5ʹ – CCATGG – 3ʹ
5ʹ – GGATCC -– 3ʹ 3ʹ – CCTAGG – 5ʹ
5ʹ– GAATTC – 3ʹ 5ʹ– GTTAAC – 3
Golden ages of reptiles and fishes are respectively
Mesozoic and Devonian
Jurassic and Permian
Triassic and Silurian
Palaeozoic and Mesozoic
Match the following Columns.
Column I (Disease) | Column II (Related Hormone) |
A. Cretinism | 1. Glucocorticoid |
B. Cushing's Syndrome | 2. Testosterone |
C. Diabetes Insipidus | 3. Thyroid |
D. Eunuchoidism | 4. ADH |
A – 3; B – 4; C – 1; D – 2
A – 2; B – 3; C – 4; D – 1
A – 3; B – 4; C – 2; D – 1
A – 3; B – 1; C – 4; D – 2
Which one of the following pair is not correct?
Mangolian idiocy – 21st chromosome
Patau syndrome – 13th chromosome
Cri-Du-Chat – 11th chromosome
Edward syndrome – 18th chromosome
Which one of the following pair is not correct?
Single-stranded DNA
Single-stranded RNA
Double-stranded DNA
None of the above
An irregular mode of reproduction resulting in the development of an embryo without fertilization is called
(I) parthenogenesis
(II) apogamy
(III) sporophytic budding
Select the correct answer using the code given below.
Only I
Only II
II and III
I, II and III
D.
I, II and III
In parthenogenesis formation of fruit occurs without fertilisation In apogamy haploid (n) vegetative cell forms embryo without gametogenesis and fertilisation, In sporophytic budding diploid (2n) vegetative cell forms embryo from bud by vegetative reproduction Thus, all of these processes are irregular modes of reproduction.
Compare the statement I and II and choose the correct option.
Statement I In the flowering plants due to higher accumulation of auxins dormancy of lateral buds occurs.
Statement II In Maryland Mammoth (a tobacco variety) flowering occurred at a different time at different latitude due to gibberellins concentration.
Statement I is true, but II is false
Statement I is false, but II is true
Both statements are true
Both statements are false