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Biology Follow On Task (Selective Breeding (Advantages of selective…
Biology Follow On Task
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Genetic Crosses
Genetic cross. Definition: The deliberate breeding of two different individuals that results in offspring that carry part of the genetic material of each parent. The parent organisms must be genetically compatible and may be from different varieties or closely related species.
Example of a question: the father is hetrozygous whereas the mother is homozygous, therefore RR, draw a genetic diagram to show all the possible arrangements, of allelles in their offspring.
Alternative forms of a given gene are called alleles, and they can be dominant or recessive. When an individual has two of the same allele, whether dominant or recessive, they are homozygous. Heterozygous means having one each of two different alleles.
One of the offspring is DOMINANT HOMOZYGOUS, What is the chance of this occurring.
Dominant Homozygous is how many capital R but 2 times (RR) because it is homozygous meaning that it has 2 of the same allelles. Within the test I lost mark since i didnt read the question carefull and missed out the key, important words which were "dominant homozygous".
Here is the question was " one of the offspring is dominant homozygous, what is the chance of this occuring? Then the answer would result to 25%.
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