<span>''Psychologists use memory models to think and communicate about memory. Information-processing models involve three processes: encoding, storage, and retrieval. The connectionism information-processing model views memories as products of interconnected neural networks. The three processing stages in the Atkinson-Schiffrin model are sensory memory, short-term memory, and long-term memory. More recent research has updated this model to include two important concepts: (1) working memory, to stress the active processing occurring in the second memory stage; and (2) automatic processing, to address the processing of information outside of conscious awareness.''</span>
I would answer but you didn't put any pictures so I can't see what shows anything.
Answer:
A mutation can benefit an organism by changing its physical characteristic.
Explanation:
Food chains and webs hope i could help
Answer options:
- The total percentage of gametes with recombinant genotypes will be 15%.
- Each recombinant gamete genotype will be produced 7.5% of the time.
- The total percentage of gametes with parental genotypes will be 100%.
- Each recombinant gamete genotype will be produced 25% of the time.
- Each parental gamete genotype will be produced 50% of the time.
- The total percentage of gametes with recombinant genotypes will be 50%.
- The total percentage of gametes with parental genotypes will be 85%.
- Each parental gamete genotype will be produced 42.5% of the time.
Answer
Explanation:
Map units are an arbitrary measurement based on the number of recombinants in a cross. Alleles on the same chromosome can only be inherited separately if crossing over occurs between them (i.e. genetic material is exchanged between different chromosomes).
The closer genes are together on a chromosome the less likely this is to occur and therefore the fewer number of recombinant phenotypes will be present.
Recombinant phenotypes are those that do not match the parents, i.e. a plant with non-yellow flowers and red tomatoes or yellow flowers and non-red tomatoes. If they are 15 map units apart, that means recombinant phenotypes when crossing 2 heterozygous individuals (F2 generation) only occur 15% of the time.
This cross is between 2 true breeding plants: YYRR x yyrr
The first parent can only produce YR gametes, and the second parent can only produce yr gametes.
Therefore, all the F1 offspring will be YyRr
The potential gametes for the F2 generation are YR, yr, Yr, yR. However, we know that Y and R are fairly close on the same chromosome. 15 map units apart means they only recombine to give yR or Yr phenotypes 15% of the time.
- The total percentage of gametes with recombinant genotypes will be 15%. - true
- Each recombinant gamete genotype will be produced 7.5% of the time. - true - <em>the combination is 15% made up of approximately 7.5% each</em>
- The total percentage of gametes with parental genotypes will be 100%. false it will be 100%-15% = 85%
- Each recombinant gamete genotype will be produced 25% of the time. false
- Each parental gamete genotype will be produced 50% of the time.
- The total percentage of gametes with recombinant genotypes will be 50%. false
- The total percentage of gametes with parental genotypes will be 85%. true
- Each parental gamete genotype will be produced 42.5% of the time. true, the combination is 42.5+42.5 = 85%