Biology, 08.08.2021 18:50 ellisc7044
Background information
Many characteristics in humans are controlled by one gene with two alleles, one dominant and one recessive Three
examples are shown below.
Unattached
earlobe
Attached
earlobe
Tongue-roller
Non-roller
Straight therub
Bent
(hitchhiker's)
thumb
Recessive
Dominant
ethod
Recessive
Dominant
Recessive
Dominant
2.
Select 20 learners that will form part of your sample
3
For every learner selected, record the phenotype for each characterstic
Record the information for each learner in a table. At the end of the table, include the percentage of learners
displaying each phenotype for each of the three characteristics
Answer the questions set.
Questions
List any FOUR planning steps for this investigation
2
In terms of the investigation about the type of earlobe (free or attached), name the following
Answers: 3
Biology, 21.06.2019 13:30, trodgers0202
The afrikaners are an example of a founder effect that occurs when a new colony is started by a few members of the original population and the random decrease in genetic variation is an example of
Answers: 1
Biology, 21.06.2019 23:30, stankyweezle
In iceland, the mid atlantic ridge runs through the center of the contry. what can you conclude about the apperence of iceland many thousands of years from now?
Answers: 1
Biology, 22.06.2019 00:40, juniorvaldez60
As the human population grows, what happens to our natural-resource requirements? o they increase o they decrease o they do not change. they go in cycles
Answers: 2
Biology, 22.06.2019 06:30, BrianKeokot4534
Albinism is an inherited genetic disorder. explain what it is meant by inherited genetic disorder
Answers: 1
Background information
Many characteristics in humans are controlled by one gene with two alleles,...
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