1. Do Now
1. Which deals with the transmission of inherited traits from one generation to another?
A. anatomy B. genetics C. ecology D. forensics
2. The inheritance of short wings in Drosophila fruit flies is an x-linked, recessive trait. Which would most likely result if a short-winged female mates with a long-winged male?
A. All offspring will be short-winged.
B. All females will be long-winged, and all males will be short-winged.
C. All females will be short-winged, and all males will be long-winged.
D. Half of the males and females will be short-winged, and half will be long-winged.
3. A parent with Type A blood and a parent with Type O blood have a child. Which of the following is a possible genotype of their offspring?
A. IAIA B. IAIB C. Ibi D. ii
4. Why do identical twins become less alike as they grow older?
A. Because the environment plays a role in influencing individuals
B. Because the genetic makeup of the individuals changes
C. Because the individuals’ cells undergo mitosis
D. Because the number of recessive alleles exceeds the number of dominant alleles

3. Karyotypes First 22 pairs are called AUTOSOMES
The 23rd pair is called the
SEX CHROMOSOMES

4. A picture of an individual’s chromosomes
Used to diagnose chromosomal abnormalities

5. Normal Male Karyotype

6. Normal Female Karyotype

7. Down’s Syndrome Karyotype
Trisomy chromosome 21’s

8. Turner’s Syndrome Karyotype
XO Female with only 1 X chromosome

9. Kleinfelter’s Syndrome Karyotpe
XXY Male with 2 X and 1 Y chromosomes

10. Cri Du Chat Karyotype
Missing a piece of chromosome 5

11. Explain what a karyotype is and its uses.
How can chromosomes cause genetic disorders?

12. Exit Ticket
Socrative.com
QPLFCPSNG