(a) Type; meiosis I. stage; prophase I
(b) (i) - Pairing of homologous chromosomes (synapsis);
- Crossing over has occurred /chiasma formation
(ii) It allows for the exchange of the genes and hence variation in the species;
(c) Gonads
(d) C - Chromatid
F - bivalent /paire homologous chromosomes;
(e) A - forms spindle fibres; /forms the opposite poles in relation to the equator of the cell;
(f) Haploid cell in plants -/synergids/ antipodal cells/ eggs cell in embryo sac
marto answered the question on September 30, 2019 at 10:29
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The diagram below represents a nitrogen cycle. (a) Name the groups of organism represented by J.....
(Solved)
The diagram below represents a nitrogen cycle.
(a) Name the groups of organism represented by J.
(b) Name the process represented by R,P,M and N.
(c) Name one process represented by T.
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(ii) State one adaptation of the structure named in d (i) above to its function
Date posted:
September 30, 2019
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Answers (1)
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The diagram below shows a stage of a certain type of cell division.
(Solved)
The diagram below shows a stage of a certain type of cell division.
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Date posted:
September 30, 2019
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Answers (1)
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(Solved)
In a capture-recapture exercise to estimate population size of dragon flies on a stretch of rivers, 250flies were first caught and marked. Two days later 500 flies were caught in the second capture and out of this, 50 flies had marks on their bodies. Estimate the population size of the flies. (show your working)
Date posted:
September 30, 2019
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Explain the following Phenomena “Stomata generally open during the day and close at night”.
Date posted:
September 30, 2019
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State four behavioural pattern or activities shown by terrestrial animals to their adaptations in habitats.
(Solved)
State four behavioural pattern or activities shown by terrestrial animals to their adaptations in habitats.
Date posted:
September 30, 2019
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Answers (1)
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Pregnancy would persist after the expiry of the fifth month of pregnancy even if the two ovaries are surgically removed from the body of female...
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Date posted:
September 30, 2019
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Answers (1)
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(Solved)
State the adaptive structural differences between nephrons of desert and fresh water animals.
Date posted:
September 30, 2019
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Answers (1)
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During cold weather, very small mammals eat more than their own weight of food per day whereas large mammals eat food which is only a...
(Solved)
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Date posted:
September 30, 2019
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Answers (1)
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(Solved)
State the advantage of breeding seasons in Mammals other than Man?
Date posted:
September 30, 2019
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(Solved)
State the function of interstitial cells found in testis.
Date posted:
September 30, 2019
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Answers (1)
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(Solved)
During a surgical operation, a doctor accidentally cut two blood vessels A and B. Out of blood vessel A, blood was spurting out while through blood vessel B, blood was flowing smoothly.
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Date posted:
September 30, 2019
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Answers (1)
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(Solved)
Name one hormone which promotes spermatogenesis in human males.
Date posted:
September 30, 2019
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Answers (1)
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(Solved)
A student examining pond water came across a certain living organisms which he drew as shown below.
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Date posted:
September 30, 2019
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Answers (1)
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State the circumstances in which more blood Sugar may be found in the hepatic portal vein than in any other blood vessels.
(Solved)
State the circumstances in which more blood Sugar may be found in the hepatic portal vein than in any other blood vessels.
Date posted:
September 30, 2019
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Answers (1)
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(Solved)
A form three student came across two different types of fruits which are described as follows:
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Date posted:
September 30, 2019
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Answers (1)
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(Solved)
State a way in which size is an important factor in temperature regulation in Mammals.
Date posted:
September 30, 2019
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Answers (1)
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(Solved)
Which part of the body produce Antidiuretic hormone.
Date posted:
September 30, 2019
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Answers (1)
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(Solved)
Name and state the functions of four valves found in Mammalian heart.
Date posted:
September 30, 2019
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Answers (1)
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The diagram below is that of a gill of a fish.
(Solved)
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Date posted:
September 30, 2019
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Answers (1)
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(Solved)
Classify the following organisms into Phylum and Class.
Date posted:
September 30, 2019
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Answers (1)