structures of ribonucleic acid

Question 1

what are the 3 bases on mRNA that code for a single amino acid called?

Answer 1

A codon

Question 2

define genome ?

Answer 2

the complete set of genes in a cell , including those in the mitochondria/chloroplast

Question 3

what is mRNA

Answer 3

messenger RNA

Question 4

what is the role of mRNA?

Answer 4

carry genetic info from DNA to the ribosomes (where proteins are made)

Question 5

list the features of mRNA?

Answer 5

single stranded, linear molecule.
base sequence complementary to a DNA sequence.
contains codons ,which are sets of 3 bases that code for an amino acid.
small enough to leave the nucleus

Question 6

what is tRNA?

Answer 6

type of RNA used in the process of translation

Question 7

what is the role of tRNA?

Answer 7

to transport amino acids to ribosomes to build up a polypeptide chain.

Question 8

give the features of tRNA?

Answer 8

-single stranded molecule folded into a clover leaf shape
-uses hydrogen bonds between complementary base pairs to hold it in shape
-contains a specific sequence of 3 bases at one end ,known as a anticodon
-contains a amino acid binding site at opposite end

Question 9

what is mRNA shape?

Answer 9

linear

Question 10

which is longer mRNA or tRNA?

Answer 10

mRNA

Question 11

which used hydrogen bonds ,mRNA or tRNA?

Answer 11

tRNA

Question 12

which contains a amino acid at the binding site , mRNA or tRNA?

Answer 12

tRNA

Question 13

which has a codon and which has an anticodon?

Answer 13

mRNA=codon
tRNA= anticodon