Name:___________________________
Agenda Week of 11 Jan – 14 Jan 2011
Class website: www.marric.us/teaching
Unit 4 Genetics-Heredity Exam 2/11
Monday 1/10/11
- Meiosis step by step
HW: Study for Quiz
Ch 10 SG due 1/19/11
Tuesday 1/11/11
- Unit 4 Quiz 1
- Genetics Vocabulary Introduction
HW: Chapter 10 SG due 1/19
Wednesday 1/12/11 –Late Start
- Genetics Practice Problems #1
HW: Chapter 10 SG due 1/19
Thursday 1/13/11 –
- Library for Computer Webquest
HW: Chapter 10 SG due 1/19
Genetics Practice Problems #2
Friday 1/14/11
Smiley Genetics
Review Genetics Practice Problem #2
HW: Genetics Practice Problems #3
Chapter 10 SG due 1/19
Study for Unit4 Quiz 2
Parents/Guardian –



I have reviewed my child’s activities and
homework for the week of 1/10/11 – 1/14/11.
I understand that is important for me to
make sure that my child is studying to
be prepared for the Quiz on 1/18/11 and
has completed all assignments this
week.
1/17/11 is Martin Luther King Day and
school is not in session.
Parent/Guardian Printed Name
Date: ____________Period:_____
Unit 4 Quiz 2 Jan 18
1/2The numbers in the figure represent the
chromosome number found in each of the
dog cells shown. The processes that are
occurring at A and B are:
3. Each egg and sperm cell contains a haploid number of
chromosomes. After fertilization, a zygote is formed having a
___________ number of chromosomes.
4. To describe how traits can disappear and reappear in a
certain pattern from generation to generation, Mendel
proposed the
5. One of the plants that the scientist is studying has an extra
copy of one chromosome in all its cells. This variation most
likely occurred during
6. Crossing-over most commonly results in
.
7. Having two similar, dominant alleles for a trait is called
8. An organism in which two alleles for a trait are different is
9. A true-breeding tall pea plant is crossed with a truebreeding short pea plant, and all the offspring are tall. What is
the most likely genotype of the offspring assuming a singlegene trait?
10. What is a test cross?
11. A Punnett square problem from HW/Inclass work
Vocabulary words:
Autosomal
Birth defect
Recessive
Fertilization
Heterozygous
Signature
Phenotype
Genotype
Dominant
Dihybrid
Homozygous
Date
Bell Ringers: Week of 10 Jan – 14 Jan 2011
Monday – Explain four differences between mitosis and meiosis.
Tuesday Which diagram correctly illustrates the fusion of normal gametes that will most
likely produce a human male?
Explain what the x and y represent and how they were formed.
Wednesday –
Which event during meiosis leads to a reduction in chromosome number from 2n to n?
a.
Pairs of homologous chromosomes line up at the equator.
b.
DNA undergoes replication.
c.
Homologous chromosomes travel to opposite sides of the cell.
d.
Sister chromatids are pulled apart at the centromere.
Explain what 2n and n mean.
Thursday/Friday
During which phase of meiosis do homologous pairs of chromosomes line up next to one another along
the equator?
a.
anaphase I
b.
metaphase I
c.
prophase II
d.
metaphase II
During which phase of meiosis do sister chromatids line up next to one another along the equator?
a.
anaphase I
b.
metaphase I
c.
prophase II
d.
metaphase II
Which stage of meiosis is responsible for the law of independent assortment?
a.
metaphase I
b.
prophase I
c.
telophase I
d.
metaphase II
Explain the difference between homologous pairs of chromosomes and sister chromatids.
http://www.brooklyn.cuny.edu/bc/ahp/AVC/Genetics/VCB_Genet_HP.html
Name:_______________________________ Date:____________________ Period:______
Unit 4 Quiz 2 Jan 18 (20 points)
A
1/2The numbers in the figure represent the chromosome
number found in each of the dog cells shown. The
processes that are occurring at A and B are:
A_____________________________________
B_____________________________________
3. To describe how traits can disappear and reappear in a certain pattern from generation to
generation, Mendel proposed the___________________________________________
4. An organism in which two alleles for a trait are different is
5. One of the plants that the scientist is studying has an extra copy of one chromosome in all
its cells. This variation most likely occurred during
6. Crossing-over most commonly results in
.
7. Having two similar, dominant alleles for a trait is called
8. Each egg and sperm cell contains a haploid number of chromosomes. After fertilization, a
zygote is formed having a ___________ number of chromosomes.
9. A true-breeding tall pea plant is crossed with a true-breeding short pea plant, and all the
offspring are tall. What is the most likely genotype of the offspring assuming a single-gene
trait?
10. A heterozygous round seeded plant (Rr) is crossed with a homozygous round seeded plant
(RR). What percentage of the offspring will be homozygous (RR)? Show all work
11. Explain what is a test cross.
Extra Credit (4 pts possible)
Vocabulary words Matching (11 – 21):
___________________
A. having to do with a body chromosome – not a sex chromosome
___________________
B. organisms that have identical alleles for a particular trait
___________________
C. physical appearance of an organism
___________________
D. A male and female gamete fuses
___________________
E. identically heterozygous at two loci for example: RrYy
___________________
F. organisms that have different alleles for a particular trait
___________________
G. an inherited anomaly that affects the functioning of an offspring
___________________
H. a trait that requires both alleles to be observed
___________________
I. a trait that is observed even if only one allele is present
___________________
J. genetic makeup of an organism
___________________
K. Reproduction that requires two parents
Heterozygous
Dominant
Sexual Reproduction
Phenotype
Dihybrid
Autosomal
Recessive
Fertilization
Birth defect
Homozygous
Genotype
Name:_______________________________ Date:____________________ Period:______
Unit 4 Quiz 2 Jan 18 (20 points)
1/2The numbers in the figure represent the chromosome
number found in each of the dog cells shown. The
processes that are occurring at A and B are:
A_____________________________________
B_____________________________________
3. Crossing-over most commonly results in
.
4. Each egg and sperm cell contains a haploid number of chromosomes. After fertilization, a
zygote is formed having a ___________ number of chromosomes.
5. One of the plants that the scientist is studying has an extra copy of one chromosome in all
its cells. This variation most likely occurred during
6. To describe how traits can disappear and reappear in a certain pattern from generation to
generation, Mendel proposed the___________________________________________
7. Having two similar, dominant alleles for a trait is called
8. An organism in which two alleles for a trait are different is
9. A true-breeding tall pea plant is crossed with a true-breeding short pea plant, and all the
offspring are tall. What is the most likely genotype of the offspring assuming a single-gene
trait?
10. A heterozygous round seeded plant (Rr) is crossed with a homozygous round seeded plant
(RR). What percentage of the offspring will be homozygous (RR)? Show all work
11. Explain what is a test cross.
Extra Credit
Vocabulary words Matching (11 – 21):
___________________
A. Reproduction that requires two parents
___________________
B. organisms that have identical alleles for a particular trait
___________________
C. physical appearance of an organism
___________________
D. identically heterozygous at two loci for example: RrYy
___________________
E. A male and female gamete fuses
___________________
F. organisms that have different alleles for a particular trait
___________________
G. an inherited anomaly that affects the functioning of an offspring
___________________
H. a trait that requires both alleles to be observed
___________________
I. a trait that is observed even if only one allele is present
___________________
J. genetic makeup of an organism
___________________
K. having to do with a body chromosome – not a sex chromosome
Heterozygous
Dominant
Sexual Reproduction
Phenotype
Dihybrid
Autosomal
Recessive
Fertilization
Birth defect
Homozygous
Genotype