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i)Insertion…..The addition of an extra base onto an existing DNA
ii)Substitution….replacement of a portion of gene with new portion
jim items answered the question on September 21, 2018 at 10:10
- How do identical twins and fraternal twins arise? Explain.(Solved)
How do identical twins and fraternal twins arise? Explain.
Date posted: September 21, 2018. Answers (1)
- Name the organelle where
a)Kreb’s cycle take place in a cell
b)Where are lysosomes synthesized(Solved)
Name the organelle where
A) Krebs's cycle take place in a cell
B)Where lysosomes are synthesized
Date posted: September 21, 2018. Answers (1)
- State the function of the following structures in the human ear:a)Eustachian tube b)Semi-circular canals(Solved)
State the function of the following structures in the human ear:
a)Eustachian tube
b)Semi-circular canals
Date posted: September 21, 2018. Answers (1)
- State five preventive measures of schistosomiasis in human beings(Solved)
State five preventive measures of schistosomiasis in human beings
Date posted: September 20, 2018. Answers (1)
- State the most suitable biological tool for collecting the following organisms
i)Ants from a tree trunk.
ii)A moth from a coffee farm.
(Solved)
State the most suitable biological tool for collecting the following organisms
i)Ants from a tree trunk.
ii)A moth from a coffee farm.
Date posted: September 20, 2018. Answers (1)
- How does sunken stomata help in lowering transpiration.(Solved)
How does sunken stomata help in lowering transpiration.
Date posted: September 20, 2018. Answers (1)
- Name the vitamin which plays an important role in the formation of blood cells.(Solved)
Name the vitamin which plays an important role in the formation of blood cells.
Date posted: September 20, 2018. Answers (1)
- Give two better ways of measuring the rate of photosynthesis other than counting bubbles produced per minute.
(Solved)
Give two better ways of measuring the rate of photosynthesis other than counting bubbles produced per minute.
Date posted: September 20, 2018. Answers (1)
- Bivalent, synapsis and crossing over are terminologies used in cell division.a)Name the stage of meiosis in which the above process occurb)Distinguish between synapsis and crossing...(Solved)
Bivalent, synapsis and crossing over are terminologies used in cell division.
a)Name the stage of meiosis in which the above process occur.
b)Distinguish between synapsis and crossing over.
Date posted: September 20, 2018. Answers (1)
- Explain why a baby loses more heat per weight than an adult when exposed to the same environmental conditions?(Solved)
Explain why a baby loses more heat per weight than an adult when exposed to the same environmental conditions?
Date posted: September 20, 2018. Answers (1)
- How does the heart increase blood flow to some parts of the body during strenuous exercise.State two ways.(Solved)
How does the heart increase blood flow to some parts of the body during strenuous exercise.State two ways.
Date posted: September 20, 2018. Answers (1)
- Outline five mechanisms of excretion in terrestrial green plants
(Solved)
Outline five mechanisms of excretion in terrestrial green plants
Date posted: September 20, 2018. Answers (1)
- State the importance of the following features of a mammalian lungs
i)Pleural fluid
ii)Spongy and elastic
(Solved)
State the importance of the following features of a mammalian lungs
i)Pleural fluid
ii)Spongy and elastic
Date posted: September 20, 2018. Answers (1)
- Describe how a seed is formed after an ovule is fertilized.
(Solved)
Describe how a seed is formed after an ovule is fertilized.
Date posted: September 20, 2018. Answers (1)
- Name the carbohydrates stored in:
a)Mammalian liver
b)Potato tuber
(Solved)
Name the carbohydrates stored in:
a)Mammalian liver
b)Potato tuber
Date posted: September 20, 2018. Answers (1)
- Name the structures that are the sites of gaseous exchange for each of the following animals
i)Whale
ii)Paramecium
iii)Moth
(Solved)
Name the structures that are the sites of gaseous exchange for each of the following animals
i)Whale
ii)Paramecium
iii)Moth
Date posted: September 20, 2018. Answers (1)
- Name the cell organelle in which carbon (IV) oxide combines with water to form complex organic compounds.(Solved)
Name the cell organelle in which carbon (IV) oxide combines with water to form complex organic compounds.
Date posted: September 19, 2018. Answers (1)
- Name the causal organism of syphilis.(Solved)
Name the causal organism of syphilis.
Date posted: September 19, 2018. Answers (1)
- It is possible to contract amoebic dysentery as a result of close contact with an infected person. Similar contact with malaria victim cannot result into...(Solved)
It is possible to contract amoebic dysentery as a result of close contact with an infected person. Similar contact with malaria victim cannot result into infection. Explain.
Date posted: September 19, 2018. Answers (1)
- What is meant by the term Epigynous ovary?(Solved)
What is meant by the term Epigynous ovary?
Date posted: September 19, 2018. Answers (1)