Question

A series of experiments shows that oil content in a diploid grain is influenced by five genes (a through e) with additive alleles. The highest producing strain is 20% oil content; the lowest has close to 0%. A plant of unknown genotype has an oil content of 12%. What is a possible genotype for this plant

Answer 1

Answer:

All the possible genotypes of the plants that have an oil content of 12% include six dominant alleles. Following we are mentioning some of them

AABbCcDdEe, AaBBCcDdEe, AaBbCCDdEe, AaBbCcDDEe, AaBbCcDdEE

Explanation:

Due to technical problems, you will find the complete explanation in the attached files.

Answer 2

The possible genotypes involving a combination of six dominant alleles required for the grain to have an oil content of 12% are:

AABbCcDdEe, AaBBCcDdEe, AaBbCCDdEe, AaBbCcDDEe, AaBbCcDdEE

Additive alleles are alleles which result from polygenic traits.

Polygenic traits are traits which are encoded by several genes resulting in more than two alleles contributing to the phenotype.

The phenotype of additive alleles is continuous due to the many different combinations of the alleles of the genes.

From the data provided:

• oil content in a diploid grain is influenced by five genes: a, b, c, d, e
• The highest producing strain is 20% oil content
• The lowest has close to 0%  

Since the grain is diploid, grains that are:

• h0m0zygous recessive for the five genes, aabbccddee, will have 0% oil content.
• h0m0zygous dominant for the five genes, AABBCCDDEE, will have 20% oil content.

Each dominant gene will contribute 20% / 5 = 4% of oil content.

Since the grains are diploid, each dominant allele will equally contribute 4% / 2 = 2% to the oil content.

Thus:

• 0 dominant allele  → 0% oil content

• 1 dominant allele → 2% oil content

• 2 dominant alleles → 4% oil content

• 3 dominant alleles → 6% oil content

• 4 dominant alleles → 8% oil content

• 5 dominant alleles → 10% oil content

• 6 dominant alleles → 12% oil content

Therefore, a combination of six dominant alleles are required for the grain to have an oil content of 12%.

All the possible genotype involving a combination of six dominant alleles required for the grain to have an oil content of 12% are given below:

AABbCcDdEe, AaBBCcDdEe, AaBbCCDdEe, AaBbCcDDEe, AaBbCcDdEE.

Learn more about phenotypes, genotypes, genes and alleles at: https://brainly.com/question/1193907