CBSE
Multiple Choice QuestionsWhich one of the following does not follow the central dogma of molecular biology?
Pea
Mucor
Chlamydomonas
Chlamydomonas
Which of the following is used in gene cloning?
Nucleoids
Lomasomes
Mesosomes
Mesosomes
Which of the following is used in gene cloning?
Nucleoids
Lomasomes
Mesosomes
Mesosomes
Which one of the following is now being commercially produced by biotechnological procedures?
Nicotine
Morphine
Quinine
Quinine
In eukaryotic cell transcription, RNA splicing and RNA capping take place inside the
ribosomes
nucleus
dictyosomes
dictyosomes
The lac operon consists of
four regulatory genes only
one regulatory gene and three structural genes
two regulatory genes and two structural genes
two regulatory genes and two structural genes
Sickle cell anaemia is
an autosomal-linked dominant trait
caused by substitution of valine by glutamic acid in the β-globin chain of haemoglobin
caused by a change in a base pair of DNA
caused by a change in a base pair of DNA
There is no DNA in
an enucleated ovum
mature RBCs
a mature spermatozoan
a mature spermatozoan
Study the pedigree chart given below.
what does it show?
Inheritance of a sex-linked inborn error of metabolism like phenylketonuria
Inheritance of a condition like phenylketonuria as an autosomal recessive trait
The pedigree chart is wrong as this is not possible
The pedigree chart is wrong as this is not possible
Which one of the following is the correct matching of three items and their grouping category?
|
Items |
Group |
|
Malleus, incus, cochlea |
Ear ossicles |
|
Items |
Group |
|
IIium, ischium, pubis |
Coxal bones of pelvic girdle |
|
Items |
Group |
|
Actin, myosin, Rhodopsin |
Muscle proteins |
|
Items |
Group |
|
Actin, myosin, Rhodopsin |
Muscle proteins |
