FREE AND STUDY GAMES ABOUT AP BIO UNIT 6 VOCAB

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FREE AND STUDY GAMES ABOUT AP BIO UNIT 6 VOCAB

EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -76 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation

Question 1: Point mutation

Answer:

change a single nucleotide pair of a gene

Question 2: Plasmids

Answer:

small circular DNA molecules that are separate from chromosomes

Question 3: Primase

Answer:

the enzyme that initiates replication by adding short segments of RNA to the parental DNA strand

Question 4: Inducible

Answer:

transcription is usually off by can be induced

Question 5: Allosteric activator

Answer:

substate binds to allosteric site and stabilizes the shape of the enzyme so the active sites remain open

Question 6: DNA methylation

Answer:

adds methyl groups to DNA (causes chromatin to condense)

Question 7: Gene expression

Answer:

the process by which DNA directs the synthesis of proteins

Question 8: Mismatch repair

Answer:

fixes mis-paired bases right after DNA replication

Question 9: DNA sequencing

Answer:

the process of determining the order of nucleotides in DNA

Question 10: Alternative splicing

Answer:

a cellular process in which exons from the same gene are joined in different combinations, leading to different, but related, mRNA

Question 11: DNA

Answer:

another one of the two types of nucleic acid made by cells, contains genetic information, composed of deoxyribonucleic acid, and is double stranded

Question 12: Codon

Answer:

a sequence of three consecutive nucleotides in a DNA or RNA molecule that codes for a specific amino acid

Question 13: Operons

Answer:

a group of genes that can be turned on and off

Question 14: Conjugation

Answer:

cell to cell transfer of DNA

Question 15: Epigenetic inheritance

Answer:

chromatin modifications do not alter the nucleotide sequence of DNA but they can be heritable to future generations

Question 16: Control elements

Answer:

A segment of noncoding DNA that helps regulate transcription of a gene by binding a transcription factor

Question 17: 5' Cap

Answer:

the 5' end of the pre-mRNA receives a modified guanine nucleotide cap

Question 18: Nondisjunction

Answer:

when chromosomes do not separate properly in meiosis

Question 19: Redundancy

Answer:

more than one codon can code for each amino acid

Question 20: Origins of replication

Answer:

a sequence of DNA at which replication is initiated on a chromosomes, plasmid, or virus

Question 21: Cytoplasmic determinants

Answer:

various molecules in the cytoplasm that contain genetic information or chemicals to spark various reactions

Question 22: Nuclease

Answer:

if segments of DNA are damaged, nuclease can remove segments of nucleotides

Question 23: Replication fork

Answer:

the point at which the two strands of DNA are separated to allow replication of each strand

Question 24: Pyrimidines

Answer:

nucleotides composed of single ring structures (C, U, T)

Question 25: Duplication

Answer:

segment is replaced

Question 26: Template strand

Answer:

the strand used by DNA polymerase or RNA polymerase to attach complementary bases during DNA replication or RNA transcription

Question 27: Substitution

Answer:

the replacement of one nucleotide and its partner with another pair of nucleotides

Question 28: Genotype

Answer:

the organism's underlying genetic makeup (combination of alleles)