-Primase; helps in generation of new DNA primers.
-Exonucleases; helps in removal of nucleotide bases found mainly at the end of a DNA chain.
-Polymerases; adds nucleotides to DNA strands to help in synthesis of new DNA molecules.
-Ligase; it forms phosphodiester bond that helps in joining DNA fragments.
-Gyrase/Topoisomerase; helps in prevention of tangling of DNA by unwinding the DNA strands.
-Helicase;helps in formation of replication fork through hydrogen bond breaking.
jim items answered the question on February 15, 2019 at 12:17
-
Discuss the various evidences which show that evolution has taken place.
(Solved)
Discuss the various evidences which show that evolution has taken place.
Date posted:
February 15, 2019
.
Answers (1)
-
Outline FOUR main stages of DNA replication.
(Solved)
Outline FOUR main stages of DNA replication.
Date posted:
February 15, 2019
.
Answers (1)
-
Two pieces of raw potato chips A and B were placed in two different solutions in petridishes and left to stand for thirty minutes. At...
(Solved)
Two pieces of raw potato chips A and B were placed in two different solutions in petridishes and left to stand for thirty minutes. At the end of the experiment, A was soft and a bit shrivelled, B was turgid and had increased in size.
(a)State the process that was being investigated.
(b)Account for the observations made in each case.
Date posted:
February 15, 2019
.
Answers (1)
-
In an experiment, a piece of brain was removed from a rat.It was later found that the rat had large fluctuation of body temperature. Suggest...
(Solved)
In an experiment, a piece of brain was removed from a rat. It was later found that the rat had large fluctuation of body temperature. Suggest the part of brain which had been removed.
Date posted:
February 15, 2019
.
Answers (1)
-
Distinguish between:
(a)Genotype and phenotype.
(b)Haploidy and diploidy.
(Solved)
Distinguish between:
(a)Genotype and phenotype.
(b)Haploidy and Diploidy.
Date posted:
February 15, 2019
.
Answers (1)
-
Briefly explain the meaning of apical dominance.
(Solved)
Briefly explain the meaning of the term apical dominance.
Date posted:
February 15, 2019
.
Answers (1)
-
Explain why Lamarck's theory of inheritance was discarded
(Solved)
Explain why Lamarck's theory of inheritance was discarded.
Date posted:
February 15, 2019
.
Answers (1)
-
(a)Define respiration.
(b)Give two differences between aerobic and anaerobic respiration.
(Solved)
(a)Define respiration.
(b)Give two differences between aerobic and anaerobic respiration.
Date posted:
February 15, 2019
.
Answers (1)
-
State the function of the deoxyribonuclei acid(DNA)molecule.
(Solved)
State the function of the deoxyribonuclei acid (DNA)molecule.
Date posted:
February 14, 2019
.
Answers (1)
-
State two roles of hydrochloric acid in the stomach.
(Solved)
State two roles of hydrochloric acid in the stomach.
Date posted:
February 14, 2019
.
Answers (1)
-
Differentiate between mechanical digestion and chemical digestion.
(Solved)
Differentiate between mechanical digestion and chemical digestion.
Date posted:
February 14, 2019
.
Answers (1)
-
List the main steps involved in nitrogen cycling in the order they occur naturally
(Solved)
List the main steps involved in nitrogen cycling in the order they occur naturally.
Date posted:
February 13, 2019
.
Answers (1)
-
What is the role of variation in evolution?
(Solved)
What is the role of variation in evolution?
Date posted:
February 8, 2019
.
Answers (1)
-
Why is mitochondria called power house of the cell?
(Solved)
Why is mitochondria called power house of the cell?
Date posted:
February 8, 2019
.
Answers (1)
-
Where do thermoreceptors for internal body temperature occur?
(Solved)
Where do thermoreceptors for internal body temperature occur?
Date posted:
February 6, 2019
.
Answers (1)
-
Discuss the main types of reproduction in Protists.
(Solved)
Discuss the main types of reproduction in Protists.
Date posted:
January 30, 2019
.
Answers (1)
-
Discuss the characteristics of protists basing your reference in microbiology.
(Solved)
Discuss the characteristics of protists basing your reference in microbiology.
Date posted:
January 30, 2019
.
Answers (1)
-
Discuss the THREE main importance of Fungi as used in biotechnology.
(Solved)
Discuss the THREE main importance of Fungi as used in biotechnology.
Date posted:
January 30, 2019
.
Answers (1)
-
Discuss Rhizanova Tree Transplant under the following: (a)As a mychorrizal fungi inoculant. (b)Advantages of using it as an inoculant.
(Solved)
Discuss Rhizanova Tree Transplant under the following:
a)As a mycorrhizal fungi inoculant.
b)Advantages of using it as an inoculant.
Date posted:
January 29, 2019
.
Answers (1)
-
Discuss the benefits of Mycorrhizae Inoculation.
(Solved)
Discuss the benefits of Mycorrhizae Inoculation.
Date posted:
January 29, 2019
.
Answers (1)