Station A (9-square Vocacbulary) Mitosis = division of a cell’s nucleus Stem Cell = an...
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Transcript of Station A (9-square Vocacbulary) Mitosis = division of a cell’s nucleus Stem Cell = an...
Station A (9-square Vocacbulary)• Mitosis = division of a cell’s nucleus• Stem Cell = an undifferentiated cell; can become any type of cell• Point Mutation = involves a change in a single nucleotide• Gene Expression = turning a section of genetic information into a useful
product• Transcription = the process of transferring information from DNA to
mRNA• Translation = the process of decoding an mRNA message into a protein• Codon = three consecutive mRNA bases• Differentiation = specializing of a cell’s function• Frameshift Mutation = involves a change that affects the entire amino
acid sequence• Cell Cycle = series of events that a cell goes through to grow and divide• Polypeptide = a polymer of amino acids
Station B (Reading Questions)1. In 1917 the biologist Thomas Hunt Morgan conducted studies in which he kept some
caterpillars in the dark and placed others under red, green, or blue lights. Exposure to red light produced butterflies with brightly colored wings. Exposure to green light resulted in dark-colored wings. Exposure to blue light or no light resulted in pale-colored wings. What was the mostly likely conclusion of Morgan’s research?
c. The genes regulating wing color in butterflies are influenced by environmental factors.
2. Hemoglobin is a protein that carries oxygen in red blood cells. The hemoglobin molecules produced by some people have one specific amino acid that is different from the amino acid at that position in normal hemoglobin. Which is the most likely cause?
a. the hemoglobin gene contains a mutation3. The mold Aspergillus flavus grows on grain. A. flavus produces a toxin that binds to
DNA in the bodies of animals that eat the grain. The binding of the toxin to DNA blocks the processes of transcription, so it directly interferes with the animal’s ability to do which of the following?
d. send mRNA from the nucleus to the ribosomes
Station C (QUIZ)1. Which of the following statements about mutations is false?
c. All mutations affect the final protein sequence.2. Which of the following correctly puts the phases of mitosis
in order?b. prophase, metaphase, anaphase, telophase
3. Which organelles are involved in protein synthesis?b. nucleus & ribosomes
4. Transcribe the following DNA sequence: TAC CATc. AUG GUA
5. Which of the following is not a difference between DNA and RNA?
d. only DNA is a nucleic acid
Station C (QUIZ) - continued6. What is the monomer of a nucleic acid?
d. nucleotide7. A cell spends the majority of its life in which phase of
the cell cycle?c. interphase
8. Enzymes are highly specific, which means - c. they can react with one type of substrate
9. What are stem cells?b. undifferentiated cells
10.According to the Amoeba Sisters Mitosis video, uncontrolled cell division leads to what disease?cancer
Cells
DNA
gene expression
Mutations
go through
contain
copies itself during
small sections are during
synthesis
includes
chromosomes
visible followed
by
can happen during
gives
instructions
to mRNA in
read one at a time during
leads to
making cell
specialized is
followed by
chromosomes
line up
chro
mos
omes
m
ove
away
two nuclei
prep
are
to di
vide
grow
genes
differentiation
translation
transcription
replication
G1 phase
S phase
G2 phase
prophase
metaphase
anaphase telophase
cytokinesis
mitosis
interphase
Cell cycle