1. Week 24
 Ch. 12.2-3 pg 315
When Heredity
Follows Different
Rules

2. Click here for a
complete Gene E in a bottle incomplete
dominance dominance
the offspring will show only the
When the offsping show traits
intermediate between
dominant trait in its phenotype dominant and recessive,
ex Black (BB) X White (bb) = ex Black (BB) X White (bb) =
White (Bb) Gray (Bb)
phenotype
genotype
100%
heterozygous

3. allele
One form of a gene,
Ex. there are three different ______s
for blood – A, B, and O

4. codominant allele
Allele that is expressed equally with another dominant
allele, co-starring
Ex. White (WW) X Black (BB) = Black and White Spotted(BW)
WW BB
W BW BW
All
BW BW
heterozygous
W

5. multiple allele trait See video
Trait controlled by
more than two
alleles
Example: Humans
have three alleles
for blood - A(IA),
B(IB), and (IO)

6. autosome
Non-sex
chromosomes
This is a human karyotype

7. sex chromosome
Chromosomes that
determine the sex
of an individual, X
and Y
Male xy
Female xx

8. sex-linked trait
Traits controlled by genes on
sex chromosomes
ex. Female carrier for Hemophilia (X X ),
H h
Hemophiliac male (XHY)
Hemophiliac female (XHXH)
Color blindness – X-linked
Male pattern balding
4 Sex-Linked Traits:
2. Normal Color Vision:
A: 29, B: 45, C: , D: 26
hemophilia
3. 2. Red-Green Color-Blind:
A: 70, B: , C: 5, D:
4. 3. Red Color-blind:
A: 70, B: -, C: 5, D: 6
5. 4. Green Color-Blind:
Hairy ears A: 70, B: , C: 5, D: 2
Female pattern balding

9. polygenic inheritance
Inheritance pattern of a trait that is
controlled by two or more genes
ex. height, skin color, eye color

10. external internal
environment environment
Survival based on
Temperature, gender, age,
nutrition, light, interaction with
chemicals, other organisms
infectious agents

11. sickle cell
disease
Causes defective
hemoglobin which
changes shape of blood
cell into a sickle, or half-
moon, blocking blood
flow

12. Name 4 Human blood types
with their genotypes Blood type animation
Phenotype Genotype
Type A IAi or IAIA
Type B IBi or IBIB
Type AB IAIB
Type O ii

13. red-green color blindness
Caused by recessive
genes on X
chromosome, affects
green and red
receptors in eyes

14. hemophilia
X-linked disorder that
causes problem with
the bloods ability to clot

15. A polygenic trait, indicated
skin color by three or four genes

16. karyotype
A chart showing chromosome
pairs
Catfish

17. Down Syndrome
 Results from trisomy of chromosome
21, tri = 3

18. Protein Synthesis
 Transcription
 Translation

19. Here are some true/false
questions for you

20. What determines structure and function of
cells?
The DNA molecule

21. Offspring receive genetic
information (DNA) from their
parents.

22. Chromosomal mutations
may lead to
genetic variation

23. Some mutations are good, and
help an organism survive.
True or False? True, but not often

24. Plants reproduce sexually and
asexually. True or false? True

25. DNA in one organism (like a mouse) has
many similarities with DNA in another
organism (like you). True or False? True
Mouse Human

26. Every cell within an organism
has same DNA. True or False? True
Liver cell Brain cell

27. www.scilinks.org
www.go.hrw.com
www.si.edu/hrw

28. And now the quizzzzzz

29. _________
Click here for a
_________ Gene E in a bottle
dominance dominance
the offspring will show only the
When the offsping show traits
intermediate between
dominant trait in its phenotype dominant and recessive,
ex Black (BB) X White (bb) = ex Black (BB) X White (bb) =
White (Bb) Gray (Bb)
phenotype
genotype
100%
heterozygous

30. _________
One form of a gene
Ex. there are three different ______s for blood
A, B, and i

31. _________ allele
Allele that is expressed equally with another dominant
allele, co-starring
Ex. White (WW) X Black (BB) = Black and White Spotted(BW)
WW BB
W BW BW
BW BW
W

32. _________ allele trait
See video
Trait controlled by
more than two
alleles
Example: Humans have
three alleles for blood -
A(IA), B(IB), and (IO)

33. _________
Non-sex
chromosomes
This is a human karyotype

34. ____ _________
Chromosomes that
determine the sex
of an individual, X
and Y
Male xy
Female xx

35. _________ trait
Traits controlled by genes on
sex chromosomes
ex. Female carrier for Hemophilia (X X ),
H h
Hemophiliac male (XHY)
Hemophiliac female (XHXH)
Color blindness – X-linked
Male pattern balding
4 Sex-Linked Traits:
2. Normal Color Vision:
A: 29, B: 45, C: , D: 26
hemophilia
3. 2. Red-Green Color-Blind:
A: 70, B: , C: 5, D:
4. 3. Red Color-blind:
A: 70, B: -, C: 5, D: 6
5. 4. Green Color-Blind:
Hairy ears A: 70, B: , C: 5, D: 2
Female pattern balding

36. _________ inheritance
Inheritance pattern of a trait that is
controlled by two or more genes
ex. height, skin color, eye color

37. _________ _________
environment environment
Survival based on
Temperature, gender, age,
nutrition, light, interaction with
chemicals, other organisms
infectious agents

38. ________ ___
disease
Causes defective
hemoglobin which
changes shape of blood
cell into a sickle, or half-
moon, blocking blood
flow

39. 4 Human ________ _______
with their genotypes Blood type animation
Phenotype Genotype
Type A IAi or IAIA
Type B IBi or IBIB
Type AB IAIB
Type O ii

40. ____ _____ _____ _________
Caused by recessive
genes on X
chromosome, affects
green and red
receptors in eyes

41. _________
X-linked disorder that
causes problem with
the bloods ability to clot

42. A polygenic trait, indicated
_________ by three or four genes

43. _________
A chart showing chromosome
pairs
Catfish

44. _________ Syndrome
 Results from trisomy of chromosome
21, tri = 3

45. For homework:
Draw Protein Synthesis
 Transcription
 Translation