Cancer is a disease that is easier to treat if it is detected early. There are also things you can do to
decrease your risk of cancer, such as eating a diet high in fruits, vegetables, and fiber; staying out
of the sun; and not smoking. T
_ keep(s) nerve fibers insulated from one another.
Which of the following structures is the richest in lipid content?
The upper motor neurons that control skel
Background: People who inherit two copies of the sickle cell allele produce abnormal hemoglobin and
suffer from sickle cell disease. The sickle cell allele (and the disease) is found in relatively high
frequencies in regions of Africa and Asia where malar
1. What is a population?
2. The picture to the right shows a population and its gene pool.
Based on the picture what do you think a gene pool is?
3. What does it mean for a gene pool to be in equilibrium?
4. Calculate the frequency of the alleles R and r
1. In what stage of mitosis are cells taken from for a karyotype analysis?
2. Look at chromosome pair number 12. Where did each chromosome originally come from? The
chromosomes are in homologous pairs. What are homologous pairs?
3. How do you think that d
The forelimbs of mammals are an example of homologous structures. When scientists compare the forelimb
bones in different animals, they look for similarities in the detailed structures of the bones. Even if the forelimb
bones have different functions, the
The Paper Pet (species Papyrus domesticus) has 4 distinct traits as shown in the chart below.
TT or Tt
HH or Hh
1. What are ALL the possible Genotypes for each parent?
I. Somatic Cells
- also called body cells
Ex: skin cells, muscle cells, nerve cells, bone cells
Why somatic cells divide:
Too big to supply needs of cell
Growth of organism
Develop (like an embryo)
Replace damaged/worn out cells
The occipital lobe is
likely to play a role in understanding spoken language.
chiefly concerned with mood, memory, and emotions.
the principal visual center of the brain.
During rapid eye movement (REM) sleep
the muscles relax, and body temperature, blood