In a Flowering Plant,gene "A" Encodes an Enzyme Responsible for the Presence

question 45

Multiple Choice

In a flowering plant,gene "A" encodes an enzyme responsible for the presence of dots on the flowers' petals.A₁,A₂,and A₃ are the three known alleles of this gene;A₁ is the wild type,A₂ is a null allele,while A₃ has a mutation in the promoter region of the gene,which results in the synthesis of very little gene product. If the "A" gene is haploinsufficient,what is the predicted phenotypic ratio in the F₁ of a cross between a wild type and a A₂/A₃ heterozygous?

• A)100% of the F₁ plants will have flowers with dots.
• B)25% of the F₁ plants will have flowers with dots,and 75% will have flowers with no dots.
• C)50% of the F₁ plants will have flowers with dots,and 50% will have flowers with no dots.
• D)50% of the F₁ plants will have flowers with a few dots,25% will have flowers with normal amounts of dots,and 25% will have flowers with no dots.
• E)100% of the F₁ plants will have flowers with no dots.

---

Definitions:

Data Warehouse

A centralized repository for storing, managing, and analyzing large volumes of data from multiple sources.

Internal Data Sources

Information collected from activities within the organization, used for decision making and strategic planning.

Test Market

A geographic region or demographic group used to gauge the potential success of a product or service before a wider market launch.

Experimental Market

A market or test area where new products or services are introduced to measure consumer response and behavior.