Fill in the blanks. 1) a) DNA is made of monomers called?, each of which contain

Question

Fill in the blanks.

1) a) DNA is made of monomers called?, each of which contains three subunits: a___,a___, group,and a nitrogenous._____.

b) during DNA replication, one daughter strand is made continuously in the _____,direction and is called the ____ stand. it elongates____ the replication fork. the other daughter strand is made discontinuously and is called the ____ strand. it elongates____ the replication fork and is made in segment called______.

1. Fill in the blanks. (4 points) DNA is made of monomers called each of which contains three subunits: , _ group, and a nitrogenous R 2. Fill in the blanks. (6 points) During DNA replication, one daughter strand is made continuously in thedirection and is called the daughter strand is made discontinuously and is called the strand. It elongates_ the replication fork. The other strand. It elongates the replication fork and is made in segments called 3Fill in the blanks. (5 points) Before a primary mRNA transcript is released from the nucleus of an eukaryotic cell a modified guanine nucleotide is added to its en d and a is added to its and splices the together. addition, a spliceosome removes the 4 Fill in the blanks. (8 points) in the mRNA to assemble During translation, ribosomes use the sequence of molecules. The which are brought to the ribosomes by which requires proteins called process of translation has several stages which requires proteins called ,: and termination, which requires a

Explanation / Answer

1. DNA composed of repeating Deoxyribonucleiotides and which composed of three sub units Sugar, Phosphate Group and a Nitrogenous base.

2. During replicatrep one strand is continous called Leading strand and elongate on 3'-5' strand and other is discontinuous called lagging strand elongates on 5'-3' end.

3.G cap is formed on 5' end and a poly A tail at 3' end and spliciosome remove introns and splice together exons.

4. Sequence of aminoacid(codon) is used to assemble peptide chains. tRNA brought amino acids to ribosomes Translation has stages initiation, elongation and termination. And termination require stop codon

Page 2.

Page 3

1.mRNA sequence

5' AUG CAU ACU GCC UGA 3'

2.Amino acid seguence

Methionine-Histidine-Threonine-Alanine

Last UGA is a stop codon.

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