Helium Flash Occurs

question 39

Multiple Choice

Helium flash occurs

• A)because helium is very explosive and cannot be controlled when the nuclear reactions occur.
• B)because degenerate gas does not allow the core to expand as it heats up.
• C)in Cepheid variables.
• D)in stars with masses less than 0.4 M.
• E)None of the other choices are correct.

---

Definitions:

Bacterial Plasmids

Small, circular, double-stranded DNA molecules found in bacteria, separate from chromosomal DNA, that can replicate independently and often carry genes conferring antibiotic resistance.

Antibiotic Resistance

The ability of microorganisms to withstand the effects of antibiotics, making them ineffective at treating infections.

Genetic Exchange

The process by which genetic material is transferred between organisms, leading to genetic variation.

Transformation

The genetic alteration of a cell by the direct uptake, incorporation, and expression of exogenous genetic material from its surroundings.