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(a)
- Substitution gene mutation; acc. substitution
(b)
- Non-disjunction;
maurice.mutuku answered the question on August 13, 2019 at 11:34
- The figure below illustrates specialized cells.(Solved)
The figure below illustrates specialized cells.
(a) Identify the cells.
(b) Name the organ where the cells name in (a) above are found.
(c) State the functions of the cells.
Date posted: August 13, 2019. Answers (1)
- In mice the allele for black fur is dominant to the allele for brown fur.
What percentage offspring would have brown fur from a cross between...(Solved)
In mice the allele for black fur is dominant to the allele for brown fur.
What percentage offspring would have brown fur from a cross between heterozygous black mice and brown mice. Show your working. Use letter B to represent the allele for black colour
Date posted: August 5, 2019. Answers (1)
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The figure below show a portion of nucleic acid
C – U – G – C
i). Name the nucleic acid
ii).Give a reason
Date posted: August 5, 2019. Answers (1)
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Name two categories of anaerobes.
Date posted: August 5, 2019. Answers (1)
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Explain the counter current flow system across the gills
Date posted: August 5, 2019. Answers (1)
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Draw and label the structure of a gill.
Date posted: August 5, 2019. Answers (1)
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What is the significance of crossing over?
Date posted: August 5, 2019. Answers (1)
- The chart below shows a feeding relationship in a certain ecosystem(Solved)
The chart below shows a feeding relationship in a certain ecosystem
a. Construct two food chains ending with a tertiary consumer in each case.
b. Which organism has the largest variety of predators in the food web.
c. Name secondary consumers in the food web.
Date posted: August 5, 2019. Answers (1)
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State the function of vitamin K and calcium ions in blood clotting.
Date posted: August 5, 2019. Answers (1)
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Explain why pepsin is produced in form of pepsinogen.
Date posted: August 5, 2019. Answers (1)
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Define the term churning.
Date posted: August 5, 2019. Answers (1)
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Define the term mastication.
Date posted: August 5, 2019. Answers (1)
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Describe the discontinuous growth among members of class insecta.
Date posted: August 5, 2019. Answers (1)
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How are desert plants adapted to conserving water?
Date posted: August 5, 2019. Answers (1)
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Give four modes of expressing food relationship in an ecosystem.
Date posted: August 5, 2019. Answers (1)
- In a certain plant species, which is normally green, a recessive gene for colour (n) causes the plant to be white when present in the...(Solved)
In a certain plant species, which is normally green, a recessive gene for colour (n) causes the plant to be white when present in the homozygous stat. Such plants die young at an early age. In the heterozygous state the plants are pale green and grow to maturity.
(a).Suggest a reason for the early death of the plants with the homozygous recessive genes.
(b).If a normal green plant was crossed with the pale green plant, what will be the phenotypic ratio of F1 generation?
(c).Give an explanation for the occurrence of pale green colour in the heterozygous state.
Date posted: August 5, 2019. Answers (1)
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Outline the role of acrosome in human spermatozoan.
Date posted: August 5, 2019. Answers (1)
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Describe the adaptations of the guard cells to opening and closing of stomata.
Date posted: August 5, 2019. Answers (1)
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Differentiate between the mode of fertilization in higher plants and in mammals.
Date posted: August 5, 2019. Answers (1)
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(Solved)
Describe the hormones involved in menstrual cycle and their roles
Date posted: June 28, 2019. Answers (1)