Drug called ‘Heroin’ is synthesized by
acetylation of morphine
glycosylation of morphine
nitration of morphine
methylation of morphine
Match the following organisms with the products they produce.
A. Lactobacillus | i. Cheese |
B. Saccharomyces cerevisiae | ii. Curd |
C. Aspergillus niger | iii. Citric acid |
D. Acetobacter aceti |
iv. Bread v. Acetic acid |
Select the correct option.
A - ii; B - iv; C - iii; D - v
A - iii; B - iv; C - v; D - i
A - ii; B - i; C - iii; D - v
A - ii; B - iv; C - v; D - iii
In a species, the weight of newborn ranges from 2 to 5 kg. 97% of the newborn with an average weight between 3 to 3.3 kg survive whereas 99% of the infants born with weights from 2 to 2.5 kg or 4.5 to 5 kg die. Which type of selection process is taking place?
Stabilizing Selection
Disruptive Selection
Cyclical Selection
Directional Selection
In Antirrhinum (Snapdragon), a red flower was crossed with a white flower and in F1 generation pink flowers were obtained. When pink flowers were selfed, the F2 generation showed white, red and pink flowers. Choose the incorrect statement from the following :
Pink colour in F1 is due to incomplete dominance.
Ratio of F2 is
Law of segregation does not apply in this experiment
This experiment does not follow the Priniciple of Dominance
Expressed Sequence Tags (ESTs) refers to :
Polypeptide expression
DNA polymorphism
Novel DNA sequences
Genes expresses as RNA
Extrusion of second polar body from egg nucleus occurs :
after fertilization
before entry of sperm into ovum
simultaneously with first cleavage
after entry of sperm but before fertilization
Match the hominids with their correct brain size :
A. Homo habilis | i. 900 cc |
B. Homo neanderthalensis | ii. 1350 cc |
C. Homo erectus | iii. 650 - 800 cc |
D. Homo sapiens | iv. 1400 cc |
Select the correct option
A - iii; B - ii; C - i; D - iv
A - iii; B - iv; C - i; D - ii
A - iv; B - iii; C - i; D - ii
A - iii; B - i; C - iv; D - ii
Select the hormone-releasing Intra-Uterine Devices.
Multiload 375, Progestasert
Progestasert, LNG-20
Lippes Loop, Multiload 375
Vaults, LNG-20
Under which of the following conditions will there be no change in the reading frame of following mRNA?
5' AACAGCGGUGCUAUU 3'
Deletion of G from 5th position
Insertion of A and G at 4th and 5th positions respectively
Deletion of GGU from 7th, 8th and 9th positions
Insertion of G at 5th position
Colostrum the yellowish fluid, secreted by mother during the initial days of lactation is very essential to impart immunity to the new born infants because it contains
Monocytes
Macrophages
Immunoglobulin A
Natural killer cells
C.
Immunoglobulin A
Colostrum, the yellowish fluid secreted by the mother during initial days of lactation is very essential to impart immunity to the new born infant because it contains Immunoglobulin A. It will impart naturally acquired passive immunity to the newborn