Filters
Question type

Study Flashcards

Most of the energy required to form the peptide bonds during elongation comes from _____.


A) ATP
B) CTP
C) GTP
D) TTP
E) whichever nucleotide is at the front of the codon

Correct Answer

verifed

verified

​Match each term with the most appropriate description. -​all of the mRNA codons A)​anticodon B)​rRNA C)​codon D)​ribosome E)​genetic code F)​translation termination G)​messenger RNA H)​promoters I)​transcription J)​translation

Correct Answer

verifed

verified

The type of RNA that carries protein-building information is called _____.​


A) ​ribosomal RNA
B) ​transfer RNA
C) ​messenger RNA
D) ​reader RNA
E) ​translator RNA

Correct Answer

verifed

verified

A gene is a DNA sequence that codes for a protein or _____ product.


A) RNA
B) DNA
C) ribosome
D) lipid
E) exon

Correct Answer

verifed

verified

Which of the following adds RNA nucleotides, one at a time, during transcription?​


A) ​RNA polymerase
B) ​DNA polymerase
C) ​RNA nuclease
D) ​transfer RNA
E) ​ribosomal RNA

Correct Answer

verifed

verified

Matching ​Match each term with the most appropriate description. -​complex with proteins to form ribosomes A)​anticodon B)​rRNA C)​codon D)​ribosome E)​genetic code F)​translation termination G)​messenger RNA H)​promoters I)​transcription J)​translation

Correct Answer

verifed

verified

A ribosome contains _____.​


A) ​RNA only
B) ​DNA only
C) ​proteins only
D) ​RNA and proteins
E) ​RNA, DNA, and proteins

Correct Answer

verifed

verified

How many different codons are part of the genetic code?​


A) ​4
B) ​16
C) ​32
D) ​64
E) ​128

Correct Answer

verifed

verified

Amino acids are carried to ribosomes by____ RNA.


A) template
B) messenger
C) transfer
D) ribosomal
E) retriever

Correct Answer

verifed

verified

Homeotic genes encode which type of protein?​


A) ​transcription factors
B) ​ribosomal proteins
C) ​channel proteins
D) ​membrane-associated proteins
E) ​DNA methylases

Correct Answer

verifed

verified

In a sickled red blood cell, what do the hemoglobin molecules do?​


A) ​repel each other
B) ​stick together
C) ​fracture and release their contents into the cytoplasm
D) ​create holes in the cell membrane
E) ​hold less tightly onto oxygen molecules

Correct Answer

verifed

verified

What is the maximum number of different tRNAs in a eukaryotic cell?


A) 3
B) 20
C) 60
D) 61
E) 64

Correct Answer

verifed

verified

Mutations in an intron region of a gene are most likely to _____.​


A) ​prevent mRNA from being synthesized
B) ​trap mRNA inside the nucleus
C) ​prevent mRNA from being recognized by the ribosome
D) ​result in no changes in the amino acid sequence
E) ​alter the amino acid sequence

Correct Answer

verifed

verified

​Match each term with the most appropriate description. -​occurs when stop codons are read A)​anticodon B)​rRNA C)​codon D)​ribosome E)​genetic code F)​translation termination G)​messenger RNA H)​promoters I)​transcription J)​translation

Correct Answer

verifed

verified

Frameshift mutations may involve _____.​


A) ​the substitution of nucleotides
B) ​the substitution of codons
C) ​the substitution of amino acids
D) ​the insertion of one to several base pairs
E) ​mutations in the promoter

Correct Answer

verifed

verified

Identify the type of mutation associated with the following questions and statements. Some answers may be used more than once. -What type of mutation occurred if the sequence GGACTCCTCCTCAGA is changed to GGACTCCTTCCTCAGA? A)deletion only B)insertion only C)base-pair substitution D)frameshift mutation

Correct Answer

verifed

verified

Showing 81 - 96 of 96

Related Exams

Show Answer