A Plant Is Homozygous for a Point Mutation in Gene

question 49

Multiple Choice

A plant is homozygous for a point mutation in gene B.This plant produces wild-type B protein in wild-type amounts,but a more detailed analysis reveals that the B mRNA produced by this plant is two nucleotides shorter than wild type.The mutation is most likely a two base-pair deletion:

• A)downstream of the STOP codon,in the last exon of gene B.
• B)in an intron of gene B away from the splice sites.
• C)in the open reading frame of gene B.
• D)that removed a splice site of gene B.
• E)within the promoter of gene B.

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Definitions:

Last Month

Refers to the period of time immediately preceding the current month.

Materials Price Variance

The difference between the actual cost of materials used in production and the standard or expected cost of those materials.

Kilograms

A metric unit of mass equivalent to one thousand grams, commonly used worldwide for measuring weight of objects.

Labor Efficiency Variance

The difference between the actual number of labor hours used in production and the standard hours expected for that level of production, multiplied by the standard hourly labor rate.