Matching:
1) ____ Slightly different versions of the same pair of genes.
2) ____ The total complement of DNA in our cells
3) ____ Portions of DNA on a chromosome that code for something.
4) ____ Thealleles a parent has for a certain trait.
5) ____ The physical outcome of a certain trait.
6) ____ The way chromosome(s) exist in prokaryotic cells.
7) ____ The way chromosome(s) exist in eukaryotic cells.
a)Human Genome b)Linear Chromosomes c)Genotype d)Alleles e)Genes
f)Circular Chromosomes g)Phenotype
7) How many chromosomes are in the nucleus of our cells? How many pairs?
8) What chromosomes do you get from your mother? Father?
9) Name each of the following types of alleles:
-AA
-Aa
-aa
11) What is the ONLY way an organism can express a recessive allele?
12) Which type of allele is more commonly expressed?
13) If you don’t show a dominant trait such as a widow’s peak or detached earlobes, and instead you show the recessive trait (which would be a normal hairline, and an attached earlobe) do you know what your alleles are?
14) If you have a mother who is a homozygous dominant for the trait of a hitchhikers thumb, and a father who is a homozygous recessive, what is the chance that their child will have a hitchhikers thumb? (draw a punnet square):
15) In humans, colorblindness is a recessive (b) X-linked trait. Normal color-vision is dominant (B). If you have a mother who is a carrier of the color blindness trait, and a father who has normal vision, what are the chances a female child will have colorblindness? What about a male child?
16) Define chromatin, and draw your own rendition of chromatin structure:
17) Define epigenetics in your own words:
18) Where are the two places that epigenetic tags can attach to DNA?
-In each location, what does an epigenetic tag do?
19) What did the human genome project do?
20) Do all body cells have identical DNA inside their nuclei?
21) What are three things that determine our gene expression? (describe each a little bit)
1-
2-
3-
22) What does the term “mutation” mean regarding DNA and genes?
23) What are some things that can altar our epigenetic tags?