Download Genetics Internet Assignment Name

Genetics Internet Assignment
Name_________________
For all websites go to the Kell homepage and click Academics then Media Center and on
The Well at the top of the page
Part One: Click on Science, then genetics, then Chromosomes and gender.
Answer the following question as you read the website.
1. Chromosomes are composed of ________________and _________________.
2. How many pairs of chromosomes does a human have?__________________.
3. Humans have 22 pairs of ______________________and one pair of
__________chromosomes.
4. In humans, what two chromosomes determine gender?______ and ________.
5. In humans, what is the male gamete called______________.
6. In humans, what is the female gamete called?____________.
7. In humans, which is larger, the male gamete or the female gamete?__________.
8. In humans, the male or female determine the gender of the
offspring?___________.
Part Two: Go back and click on Meiosis. Read the introductions and then click on
“animation”. Click on “step-through”. Read the paragraph, and then click “play” to
watch. Click “continue” and it will take you to the next frame. Follow theses
procedures through all eleven frames.
1. How many cell divisions are involved in meiosis?__________
2. The pairing of homologous chromosomes in prophase I is called________.
3. During prophase, homologous chromosomes may exchange genetic material
through crossing-over.
What are the crossing-over points
called?_____________
4. Do the centromeres of the chromosomes divide during anaphase I?____________
5. In prophase II, how many chromosomes are in each cell?_________________
6. During anaphase II, do homologous chromosomes or sister chromatids
separate?___________(there isn’t a picture but it is discussed)
After you view the 11th frames, click on “conclusion”, and answer the following
question.
7. The 4 daughter cells produced by meiosis are genetically unique. What two
occurrences during meiosis lead to this uniqueness? ___________________and
____________________.
Part Three:
Go to the back and then click on Mendel’s Genetics. Answer the following
questions.
Gregor Mendel is known for his experiments and studies that led to our understanding of
genetics today.
1. In what year were Gregor Mendel’s ideas publishes? _________.
2. What plant did Mendel use in his research on heredity?____________.
3. Name two reasons why Mendel used this particular plant in his
research.______________________________, ________________________.
4. What 3 important conclusions did Mendel make from his experiments?
_________________________________________,_______________________,_
__________________________________________________.
Part Four:
Go back then click on ZWK990011K. Answer the following questions.
This is a picture of the chromosomes from a human cell.
1. Are these chromosomes from a male or female?
2. Which set of chromosomes is different from all the others? _____How is it
different?_______.
Part Five: Go back to the science main page and page down to Genetics Science
Learning Center. Click Tour of the Basics then click on What is Heredity. Read the
slide then click next. Answer the questions as you go through the slides.
1. Why don’t children look exactly like their parents?___________
2. How many chromosomes are in a complete set of human
chromosomes?____
3. How many combinations of chromosomes are there from each
parent?____________
Part Six: Go back to the main science page and page down to Monohybrid Test
Crosses
Click on monohybrid cross problems at the bottom. Click begin problem set. Do
problems 1-8.
Record your answers below. Use the tutorials if you miss one.
1. ____________
2.____________
3.____________
4. ____________
5. ____________
6. ____________
7. ____________
8. ____________
Click on the sex-linked traits and try the first three
1_______
2________
3________