Fruit Color in a Particular Plant Is Controlled by a Set

question 13

Multiple Choice

Fruit color in a particular plant is controlled by a set of three QTLs (quantitative trait loci,or "polygenes") that work in an equal and additive manner.Each QTL has two alleles (i.e. ,A and a) ;each allele represented by a capital letter produces one dose of yellow pigment,while alleles represented with lower case letters do not produce any pigment at all.
-If a trihybrid plant (A/a;B/b;C/c) is testcrossed,what proportion of the offspring will have a fruit color phenotype that is different from both the trihybrid and the tester parents? (Assume no environmental effects.)

• A)1/8
• B)1/4
• C)3/8
• D)1/2
• E)3/4

Describe the unique soil horizon preferences and activities of different soil organisms.

Understand the composition of rich agricultural soils.

Identify key elements and their roles in plant nutrition and growth.

Describe the interactions between plants and symbiotic organisms, including their benefits and mechanisms.

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Definitions:

Major Ionization State

The predominant form of a molecule at a given pH level, determined by the molecule's dissociation into ions in solution.

Histidine

An essential amino acid important in the growth and repair of tissues, often mentioned in the context of protein synthesis.

pKa Values

A quantitative measure of the strength of an acid in solution, defined as the negative logarithm of the acid dissociation constant (Ka).

pH

A measure of the hydrogen ion concentration in a solution, reflecting its acidity or basicity.