| Where do babies come from? And look like they do? | Probabilities | Practice, practice, practice | It's the last category! | |
|---|---|---|---|---|
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In the cytoplasm on the ribosomes
Where does protein synthesis occur?
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Four cells result with half the number of chromosomes...
How is meiosis different from mitosis and why is that important?
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Probability
What is the likelihood that a particular event will occur?
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Amino acids
What are the building blocks of proteins
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Some mutations are helpful. For example, antibiotic resistance in bacteria is helpful to bacteria.
Are mutations alwasy harmful? Explain.
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The three base code on the mRNA
How does the transfer RNA know what animo acid to bring?
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They must be identical twins
How can two offspring have exactly the same DNA?
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50/50. The events are independent
If you flipped a coin 8 times and got 7 heads and one tail, what is the probability that you will flip a head on the next flip? Why?
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No. The codes are very specific so that a specific protein is synthesized.
Can a set of three bases code for more than one amino acid? Why or why not?
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Purebred; Hybrid
What is another word for heterozygous? Homozygous?
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The DNA separates into two strands. The mRNA is built by building complimentary base pairs into a strand.
How is mRNA built?
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If the two brown eyed parents were heterozygous, they could each have given a blue eyed allele to the child.
Why is it possible for two brown-eyes parents to have a blue eyed child?
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Genotype is the set of alleles that you have for a trait. Phenotype is the trait that is expressed from those alleles.
Contrast phenotype versus genotype.
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Yes. You saw that in our protein synthesis activity.
Is it possible for more than one three base code to code for the same amino acid? How would you know?
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A dominate allele always is expressed when it is present, over the recessive allele. In order for a recessive trait to be expressed, two recessive alleles need to be present.
What is the difference between a dominant allele and a recessive allele. Explain
|
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Adenine - Uracil
Thymine-Adenine Guanine-Cytosine
Give the base pairings from DNA to RNA. Give full names
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46, 23.
Humans have how many chromosomes? How many do the egg and the sperm have?
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Punnett Square is what is likely. Each offspring's genes are random. Only when the sample size is very large do the results match the punnett square.
Will the offspring match the punnett square probabilities every time? Why or why not?
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Transfer RNA
What part of the cell carries the amino acids to the ribosomes?
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UCAAGCUUAGC
Write the mRNA that would be built off a DNA strand with the code: AGTTCGAATCG
|
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The DNA is in the nucleus. The instructions for building the proteins needs to move out to the ribosomes in the cytoplasm
Why is mRNA required for protein synthesis?
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If the red and white gene were codominant, a pink flower could occur. The pink flower would have to have a red allele and a white allele.
How can a red flower and a white flower produce a pink flower? Describe the genotype.
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50% heterozygous brown eyes, 50% homozygous blue eyes.
What are the probabilities of genotype from the cross of a heterozyous brown eyed parent and a homozygous blue eyed parent?
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Mutations in body cells do not affect sex cells. Only sex cells carry alleles to offspring.
Why are mutations in an organism's body cells not passed on to its offspring?
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...genes are carried from parents to offspring on chromosomes.
According to the chromosome theory of inheritance, ...(finish this statement)
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