Which Astronomical Object or System Is Likely to Be the Oldest

question 140

Multiple Choice

Which astronomical object or system is likely to be the oldest?

• A) a T Tauri star
• B) Pleiades
• C) the Sun
• D) a globular cluster

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Definitions:

Genotype

The genetic makeup of an organism consisting of all the DNA sequences (genes) it possesses, determining specific traits.

RR Parent

Refers to a plant that is homozygous for the round seed shape allele in Mendelian genetics, "RR" signifies both alleles for a trait are the same (dominant).

Dominant Phenotype

The observable trait or characteristics of an organism that masks the effect of a recessive allele; it is expressed in the phenotype when a dominant allele is present.

Genotype

The genetic constitution of an individual organism, determining specific traits by its DNA sequence.