Mitosis produces two daughter cells, why are they genetically the same?
Asexual reproduction, replaces old & damaged cells
What can mutations change in an organism?
Its DNA, Protein, or Phenotype
A farmer sprays his field with insecticide every year to rid his crops of bugs. A few survived the first year and more and more survived each year. How could this happen?
The bugs were resistant (or immune) and passed this trait on to the next generations.
Give it food and it will live; give it water and it will die
Fire
This process provides growth, repair, and maintenance.
Mitosis
Is there a difference in amino acids between these two DNA strands?
DNA Strand: AACTACGGGAGCAGTTAG
Mutated Strand: AACTACGGGACCAGTTAG
There is 1 amino acid difference
Which organism has the highest fitness?
A smaller than average tiger has twice as many healthy cubs as the other tigers.
A human that lives to be 120 with no children
The tiger: Although smaller than average, it is able to produce healthy offspring. Increasing the tiger population, therefor increasing the tiger species chances of survival.
What has to be broken before it can be used?
An Egg
Which phase of mitosis is this?
Chromosomes line up in the center of the cell
Metaphase
IF a mutated DNA strand creates a new protein, what will happen to the phenotype expression?
The phenotype would change
Describe Natural Selection
organisms with favorable traits and phenotypes survives and reproduces while organisms without favorable traits are less likely to survive and reproduce.
What is next in this sequence? JFMAMJJASON . . .
The letter “D.” The sequence contains the first letter of each month.
The Diploid number in a species of ape is 48 chromosomes. How many chromosomes can be found in the skin cell of this species of ape?
48
How can a mutation benefit an organism?
any characteristic that makes the organism more fit to its environment (Example: blending in to surroundings, etc)
(Double Jeopardy) A vestigial structure are various cells, tissues, and organs in a body which no longer function in the same way the ancestral form of the trait functioned. An example of this is out appendix. How might this be evidence of evolution?
Our bodies no longer needed the organ to survive in the environment
What gets sharper the more you use it?
Your Brain
Why is it important for Crossing over to occur in Prophase 1 of meiosis?
Promotes genetic diversity
Increases chance of variations
chromosomes exchange DNA to create unique cells
True or False? - Some controversial views of In vitro fertilization (altering specific traits of a baby before it's born) are:
It is too expensive so only the upper-class has access
This process can stop genetic diseases from being passed.
True
Even though these finches live in the same area, why might they have different phenotypes?
Specialized beaks for specific food sources, different colors for hunting or avoiding predators, etc.
What happens four times in a teenager’s life, once in adult life and never in childhood?
The letter "E"