Here Is the ABC Hypothesis of the Impact of Genes

question 5

Multiple Choice

Here is the ABC hypothesis of the impact of genes A,B,and C on floral part development:
i."A" genes are switched on in the two outer whorls (sepals and petals) .
ii."B" genes are switched on in the two middle whorls (petals and stamens) .
iii."C" genes are switched on in the inner two whorls (stamens and carpels) .
Which of these genes are active for petals?

• A)i
• B)i and ii
• C)i and iii
• D)iii and iv

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Definitions:

Monozygotic Twin

Twins that are genetically identical, having developed from a single fertilized egg that split into two.

Dizygotic Twin

Twins that are formed from two separate fertilized eggs, also known as fraternal twins, sharing about 50% of their genetic makeup.

Homosexual

A term used to describe an individual who is attracted emotionally, romantically, or sexually to members of the same sex.

Sexual Orientation

A natural and unchangeable, long-lasting attraction towards others, whether emotional, romantic, or sexual.