Biology Final Exam - 1. Natural Selection Answer: A process in which...

Biology Final Exam

GRADED A+ (ACTUAL EXAM ) Questions and Answers (Solved)

• Natural Selection

Answer: A process in which individuals that have certain inherited traits

tend to survive and reproduce at higher rates than other individuals because of those traits.

• allele frequency

Answer: how often an allele appears in a gene pool

• offspring

Answer: an organism's child or children.

• Allele

Answer: An alternative form of a gene.

• DNA and Molecular Evidence of Evolution

Answer: When comparing the DNA/proteins/molecules of one species to

another, more similarities are found in species that are more closely related.

6. DNA

Answer: A complex molecule containing the genetic information that makes

up the chromosomes.

• mRNA (messenger RNA)

Answer: The form of RNA which is created as a blueprint from DNA;

carries instructions for making a protein

• Codon

Answer: three-nucleotide sequence on messenger RNA that codes for a

single amino acid

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• amino acid

Answer: Monomer (building blocks) of protein

• codon chart

Answer: Chart used to determine the amino acid coded for by a codon

• Central Dogma of Biology

Answer: DNA -> RNA -> Protein

• blood types

Answer: A, B, AB, O - determined by multiple alleles

• Heterozygous

Answer: having two different alleles for a trait (Aa)

• homozygous dominant

Answer: Both alleles (factors) for a trait are the same and dominant (AA)

• homozygous recessive

Answer: Both alleles (factors) for a trait are the same and recessive (aa)

• Adaptation

Answer: inherited characteristic that increases an organism's chance of

survival

• Punnett Square

Answer: A tool that shows all the possible combinations of alleles that can

result from a genetic cross

• Evolution

Answer: Change in a kind of organism over time; process by which modern

organisms have descended from ancient organisms.

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