When DNA Molecules from Two Different Organisms Are Incubated Together

question 27

Multiple Choice

When DNA molecules from two different organisms are incubated together, some duplexes are formed by DNA strands from the two species. What indicates that such duplexes are less stable than those between strands from the same organism?

• A)Heterogeneous duplexes melt at lower temperatures than homogeneous duplexes.
• B)Heterogeneous duplexes melt at higher temperatures than homogeneous duplexes.
• C)Heterogeneous duplexes are degraded faster.
• D)Heterogeneous duplexes are degraded more slowly.
• E)There is no difference in stability between homogeneous and heterogeneous duplexes.

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Definitions:

B Lymphocytes

A type of white blood cell that plays a significant role in the immune system by producing antibodies to combat infections.

Vulnerable

Exposed to the possibility of being attacked or harmed, either physically or emotionally.

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Small glands located on top of each kidney that produce hormones such as adrenaline and cortisol, which are involved in stress response and other bodily functions.

Stress Hormones

Hormones like cortisol are secreted into the body as a reaction to stress, impacting different bodily processes.