Removal of introns and joining the exons in a defined order in transcription unit is called
splicing
tailing
transformation
transformation
A.
splicing
In some eukaryotes, genes consist of coding nucleotides sequences, which are separated from each other by blocks of non-coding sequences. The coding sequences here are called exons and non-coding sequences are called introns. The primary transcript from a typical eukaryotic gene contains introns as well as exons. The introns are removed from this primary transcript by a process called RNA splicing.
Whose experiments cracked the DNA and discovered unequivocally that is genetic code is a triplet?
Nirenberg and Mathaei
Hershey and Chase
Morgan and Sturtevant
Morgan and Sturtevant
select the incorrect statement from the following
Linkage is an exception to the principle of independent assortment in heredity
galactosemia is an inborn error of metabolism
small population size results in a random genetic drift in a population
small population size results in a random genetic drift in a population
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 |