Lab Safety
In Biotechnology PPE stands for?
Students were given a list of elements and asked to identify the four most abundant elements in biomolecules? Which list is correct?
A. Carbon, Hydrogen, Oxygen, Nitrogen
B. Carbon, Fluorine, Oxygen, Phosphorus
C. Carbon, Hydrogen, Chlorine, Potassium
D. Carbon, Oxygen, Helium, Nitrogen
A. Carbon, Hydrogen, Oxygen, Nitrogen
Proteins are made in tiny structures called (hint: what organelle?)
Ribosomes
Differences in traits such as hair texture are determined by differences in-
A. location of the sugar groups on DNA
B. The sequence of nucleotides in DNA
C. the number of nitrogenous bases
D. the molecules attached to the phosphate in DNA
B. the sequence of nucleotides in DNA
Which of these would most likely cause a mutation?
a. the placement of ribosomes on the ER
b. the insertion of a nucleotide into DNA
c. the movement of tRNA out of the nucleus
d. the release of mRNA from DNA
b. the insertion of a nucleotide into DNA
Which of the following is not a correct safety procedure in the lab?
A. Scientists must wear closed toes shoes
B. Scientists should avoid eating and drinking
C. Scientists should read all directions
D. It is okay to leave work area a mess when you leave
D. it is okay to leave work area a mess when you leave
In Eukaryotic Cell, The nucleus contains long molecules of DNA. Which of the following best describes the function of DNA?
A. DNA packages material for transport through the nucleus
B. DNA makes ATP in the mitochondria
C. DNA serves as the blueprint for producing an organism
D. DNA carries materials in and out of the nucleus
C. DNA serves as the blueprint for producing an organism
List the following in order from least complex to most complex
Cells, Tissues, Organ System, Organ, Biomolecules, Organism
Biomolecules, Cells, Tissues, Organ, Organ System, Organism
What amino acid sequences would be translated from the mRNA sequence 5' AUGGCCUAC 3' ?
Methionine, Alanine, Tyrosine
if the DNA sequence is CAT, what is the tRNA sequence?
CAU
When working with chemicals in the lab, it is important to know what to do if a chemical touches your skin. What sheet is used in the lab to tell scientists?
Safety Data Sheet
DNA stands for?
Deoxyribose Nucleic Acid
A Prokaryote can be classified on its lack of of which of the following organelle?
What is a nucleus?
DNA passes information to RNA during the process of?
Transcription
What codon codes for the amino acid arginine?
CGC
Which of the following includes PPE required every time in biotech lab? (hint there are three)
Goggles, Gloves and Lab Coat
A substance called a catalyst, is often added to reactants to speed up a chemical reaction. Which of the following kinds of biomolecules serves the same function for chemical reactions in living things ?
Enzymes
A DNA nucleotide may contain
A. deoxyribose, cyotsine, and a lipid
B. deoxyribose, thymine, phosphate group
C. ribose, uracil, and a polypeptide
D. ribose, adenine and thymine
B. deoxyribose, thymine and a phosphate group
What is the complementary DNA strand to AATCGC?
TTAGCG
Suppose a segment of mRNA reads UAG, what will happen during translation when the protein is made?
a. the ribosome will begin assembling a protein
b. the tRNA will continue to drop off amino acids
c. the protein will stop being produced
d. isoleucine will enter the nucleus
C. the protein will stop being produced.
When you are in biotech class and you spill a chemical on the floor, what should you do first?
Let your teacher know immediately.
Genetic information is stored inside the
A. ribosomes, which have chromosomes that contain genes
B. ribosomes, which have genes that contain chromosomes
C. Nucleus, which has chromosomes which contain genes
D. Nucleus which has genes that contain chromosomes
C. Nucleus which has chromosomes that contain many genes.
All of the following are found in a DNA molecule except?
A. Phosphate
B. deoxyribose
C. Nitrogen
D. Uracil
D. Uracil
if 10 percent of the bases in DNA are thymine, what are the percentages of the other 3 bases?
10 percent adenine 40 percent guanine and cytosine
What is one key difference between DNA and RNA?
DNA is a double helix, RNA is a single strand