Biology 2023 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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