Dragon Web Lab
NAME:____________________________
1. Go to http://www2.edc.org/weblabs/
2. Click on the microscope
3. Click on Dragons and enter the web lab. Follow the directions and answer the
questions below as you go.
a. Draw each chromosome and label the genes with the traits they control.
Chromosome #1
Chromosome #2
Chromosome X
Chromosome y
b. Define alleles:
c. Define Genotype:
d. Define Phenotype:
e. Answer the following questions as you go. Circle the correct answer(s):
*Which of these genotypes would result in a dragon with horns? (There might be
more than one)
hh
Hh
HH
*Which genetic combination would result in a dragon with two legs?
ll
Ll
LL
*How many different phenotypes are there for legs in dragons?
1
2
3
4
*What genetic combination would results in a green dragon?
BC
CC
AA
AB
*How many body colors are possible in dragons?
4
5
6
7
*If a male dragon did not have fire, what genetic combinations would he have?
FF
Ff
ff
FF&Ff
Ff&ff
f
*If a female dragon had the f allele on the X chromosome, would she have fire or
not?
Fire
No Fire
*How many changes did you make in order to match the dragons?
4. Go back to the Directory and click on Sex Determination & Linkage. Follow the
directions and answer the questions below as you go.
a. How many chromosomes do humans have?
b. What chromosomes determine sex?
c. Explain and draw the chromosomes that are in each sex cell before and after
meiosis for males and females.
d. How much genetics material is on the Y chromosome?
e. What are traits said to be when carried on the X chromosome?
f. Name and define two traits found on the X chromosome.
g. What combination would create a colorblind son? A colorblind daughter?
h. Why is it more likely for males to have recessive sex-linked traits than females?
5. Go back to the Directory and click on How Does DNA Work? Follow the directions
and answer the questions below as you go.
a. Name what DNA is made of and its three parts.
b. Name the 4 bases and tell me which ones pair together.
c. What does the order of the bases tell the cell?
d. What are codons?
e. What are amino acids?
f. What are proteins made of?
g. What are the two major steps to get from DNA to a protein?
h. What happens in transcription? What replaces thyamine?
i. Write down the RNA sequence that you create.
j. What happens in translation?
k. Where must RNA be for translation to occur?
l. What do tRNA carry?
m. Which amino acid is the first/start codon?