Category: First Fives

First Fives are warm-ups

First Five February 23/24

Natural selection acts only on observed phenotypes.  Explain why a heterozygous genotype can survive while a homozygous recessive genotype can not if the recessive allele is deadly. Explain what is wrong with the cartoon below that makes it funny.

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First Five February 21/22

How do we explain the gradual change in the characteristics of a species over time? How does this cartoon explain natural selection?

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First Five February 16/17

 How is the check lab story like a theory? What does the picture below tell us?

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First Five February 14/15

“For 3.5 billion years evolution has been taking notes. It tries experiments. It wakes up each morning, does a little mutagenesis, changes a nucleotide here and there, and sees how it works. If it is a success, it keeps the

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First Five February 9/10

What is the purpose of meiosis?  List TWO reasons it increases the amount of variation in the offspring compared to mitosis. What is a human zygote?  What chromosome number does it have?

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First Five February 7/8

For the pedigree below, identify the mode of inheritance and provide at least 2 reasons for your choice.  A child has type B blood.  If the mother is type AB blood, what are the possible phenotypes of the father?

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First Five February 6

Explain the differences between an intron and an exon. Describe how you can tell the difference between an autosomal and sex-linked trait on a pedigree.

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First Five February 2/3

What control do you have over your genetics? Explain how do two alleles produce three phenotypes?

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First Five January 31/February 1

What is the difference between a gene/genotype and a phenotype? Explain the process of how a section of DNA codes for  a protein?

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First Five January 30

 Analyze the following cartoon.  Draw a Punnet Square and write a short summary to explain it. 

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