Cal poly Bio 123 midterm 1 lectures 1-4
Questions and Answers
what is sex - answer In humans: male, female, or intersex; Based chromosomes,
anatomy, eggs/sperm
What is Biology? - answer The Study of Life
what is sexual reproduction - answer Offspring has genetic material from two parents
difference between science and pseudoscience - answer Both science and
pseudoscience claim that evidence is key; however, only science provides valid,
credible, testable evidence. They both formulate hypotheses, but pseudo-scientists look
exclusively for "data" that support their hypothesis and ignore all the rest.
what is the scientific method? - answer 1. Ask Question
2. Propose Hypothesis
3. Design Study a. Observational b. Experimental
4. Make Predictions
5. Perform Study, Analyze Data
Were predictions met?
In scientific method, ask were predictions met? - answer YES = Hypothesis
supported, null hypothesis rejected
NO = Hypothesis rejected, null hypothesis supported
what axis on the graph are the dependent and independent variables on? - answer
Dependent variable: vertical
Independent variable: horizontal
what is the dependent variable? - answer dependent variable is the variable being
tested in a scientific experiment. i.e reported change in penis size
what is the independent variable? - answer *The independent variable is the one that
is changed by the scientist. i.e. comparing treatment group vs control group
why do we never use the word prove in biology - answer Evidence only goes as far
as that study.
what is a Single blind study: - answer participants don't know whether they got test
drug or placebo
, what is a double blind study? - answer participants and scientists don't know whether
they got test drug or placebo
what are predictions? - answer your predictions are the results of your study if you
hypothesis is true
what is a placebo - answer a substance that has no therapeutic effect, used as a
control in testing new drugs.
How do we find out whether something works or not? - answer Ask your doctor
• Look on Wikipedia, etc. (beware) • Look up reputable sources
Does size "matter?" - answer USA ~ 5.6 inches long when erect, 4.8 inches girth,
women find larger flaccid penises more attractive
one night stand women wanted 6.4 inches as for a long partner they want 6.3 in length--
> these are all higher than the average american penis size therefore women prefer a
larger penis size
According to Chapter 1 of "Bonk", which of the following did a sex researcher actually
measure? - answer How far ejaculate travels when a man orgasms.
what is the control group? - answer the group in an experiment or study that does
not receive treatment by the researchers and is then used as a benchmark to measure
how the other tested subjects do.
Howard has a mohawk hairstyle. Matt doesn't. These are descriptions of: - answer
Phenotype
Howard has a sequence of bases ATTCGG at a location on one of his chromosomes,
whereas Matt has a sequence of bases TTCAGA at the same location on his
chromosome. These are descriptions of: - answer Genotype
How many alleles for nose shape does each child get? - answer 2 alleles
Sadly, Dr. Kolluru does not have dimples. If "D" codes for dimples and "d" codes for no
dimples, then based on what we've discussed so far, what is her genotype? - answer
dd is the genotype
How many chromosomes are in a human typical sperm cell? - answer 23
chromosomes
could DNA evidence have been used to catch the correct twin? - answer Yes,
because identical twins have different DNA
Questions and Answers
what is sex - answer In humans: male, female, or intersex; Based chromosomes,
anatomy, eggs/sperm
What is Biology? - answer The Study of Life
what is sexual reproduction - answer Offspring has genetic material from two parents
difference between science and pseudoscience - answer Both science and
pseudoscience claim that evidence is key; however, only science provides valid,
credible, testable evidence. They both formulate hypotheses, but pseudo-scientists look
exclusively for "data" that support their hypothesis and ignore all the rest.
what is the scientific method? - answer 1. Ask Question
2. Propose Hypothesis
3. Design Study a. Observational b. Experimental
4. Make Predictions
5. Perform Study, Analyze Data
Were predictions met?
In scientific method, ask were predictions met? - answer YES = Hypothesis
supported, null hypothesis rejected
NO = Hypothesis rejected, null hypothesis supported
what axis on the graph are the dependent and independent variables on? - answer
Dependent variable: vertical
Independent variable: horizontal
what is the dependent variable? - answer dependent variable is the variable being
tested in a scientific experiment. i.e reported change in penis size
what is the independent variable? - answer *The independent variable is the one that
is changed by the scientist. i.e. comparing treatment group vs control group
why do we never use the word prove in biology - answer Evidence only goes as far
as that study.
what is a Single blind study: - answer participants don't know whether they got test
drug or placebo
, what is a double blind study? - answer participants and scientists don't know whether
they got test drug or placebo
what are predictions? - answer your predictions are the results of your study if you
hypothesis is true
what is a placebo - answer a substance that has no therapeutic effect, used as a
control in testing new drugs.
How do we find out whether something works or not? - answer Ask your doctor
• Look on Wikipedia, etc. (beware) • Look up reputable sources
Does size "matter?" - answer USA ~ 5.6 inches long when erect, 4.8 inches girth,
women find larger flaccid penises more attractive
one night stand women wanted 6.4 inches as for a long partner they want 6.3 in length--
> these are all higher than the average american penis size therefore women prefer a
larger penis size
According to Chapter 1 of "Bonk", which of the following did a sex researcher actually
measure? - answer How far ejaculate travels when a man orgasms.
what is the control group? - answer the group in an experiment or study that does
not receive treatment by the researchers and is then used as a benchmark to measure
how the other tested subjects do.
Howard has a mohawk hairstyle. Matt doesn't. These are descriptions of: - answer
Phenotype
Howard has a sequence of bases ATTCGG at a location on one of his chromosomes,
whereas Matt has a sequence of bases TTCAGA at the same location on his
chromosome. These are descriptions of: - answer Genotype
How many alleles for nose shape does each child get? - answer 2 alleles
Sadly, Dr. Kolluru does not have dimples. If "D" codes for dimples and "d" codes for no
dimples, then based on what we've discussed so far, what is her genotype? - answer
dd is the genotype
How many chromosomes are in a human typical sperm cell? - answer 23
chromosomes
could DNA evidence have been used to catch the correct twin? - answer Yes,
because identical twins have different DNA
