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WorksheetsDNA/RNA, Protein Synthesis & Biotech
Total questions: 20
Worksheet time: 11mins
Which effect could a mutation in mRNA have on the production of proteins?
The protein produced will have a different identity.
The protein produced will have a coiled shape.
The protein produced will produce excess nitrogen.
The protein produced will produce excess water.
What carries the instructions for making amino acids in a protein
the nitrogen base on the tRNA
the hydrogen bonding between nitrogen bases
the sequence of nitrogen bases on the mRNA
the nitrogen base bonding on the DNA molecule
Adult 1
Adult 2
Adult 3
Adult 4
Which transgenic organism has been used to clean up oil spills?
bacteria
fungus
jellyfish
paramecia
The subunit of nucleic acids like DNA and RNA are called:
Monosaccharides
Sugars
Amino acids
Nucleotides
DNA has nitrogenous bases that come in pairs. What is this called?
Complementary Base Pairing
Convergent Pairing
Nondisjunction
DNA Replication
The nitrogenous bases of DNA nucleotides form the middle "rungs" of the DNA ladder. What type of bond holds these bases together?
Strong covalent bonds
Peptide bonds
Weak hydrogen bonds
Strong phosphorous bonds
Every set of 3 bases or letters in DNA and RNA are called a:
Codon
Triplet
Chart
Amino acid
A segment of DNA is called a:
Allele
Gene
Codon
Trait
What process is shown in this image?
Transcription
Translation
DNA Replication
Independent Assortment
Travels outside of the nucleus.
DNA
RNA
Which of the following best describes the relationship between DNA, genes, and chromosomes?
Genes are segments of DNA that are organized into chromosomes.
Chromosomes are segments of genes that are organized into DNA.
DNA is a segment of chromosomes that are organized into genes.
Genes are segments of chromosomes that are organized into DNA.
Using a codon chart, determine which amino acid is coded by the mRNA codon UAC.
Methionine
Tyrosine
Serine
Valine
How does a mutation in DNA affect protein synthesis?
It always results in a nonfunctional protein.
It can change the amino acid sequence of the resulting protein.
It has no effect on the protein produced.
It only affects the protein if it occurs in a non-coding region.
Which of the following is a result of a point mutation in a gene?
A change in a single nucleotide in the DNA sequence.
The deletion of an entire chromosome.
The duplication of a gene segment.
The inversion of a chromosome segment.
Which is a potential benefit of producing transgenic organisms?
cloning of animals to prevent extinction
finding new ways of treating people who inherit diseases
producing multicelled organisms that have characteristics of both plants and animals
eliminating the need for surgical procedures
Why are similarities in DNA sequences most often considered the best evidence of evolutionary relationships?
DNA provides a comparison of genetic sequence and similarity in organisms that are genetically close
DNA contains unique nucleotides
DNA is found in every living thing
DNA is passed unchanged from parent to offspring
How do transgenic organisms differ from the organisms used to develop them?
They do not have RNA
The contain DNA from other organisms
They have a larger nucleus
They contain substances that make the cell larger
The diagram below shows the DNA fingerprints of four different fish species. What information can be determined from studying their DNA fingerprints?
whether they are the same age
whether they are closely related
whether they are male or female
whether they inherited genetic diseases
