Download Chromosomes

Week 7 Quiz
1.
A.
B.
C.
D.
Name_____________________
Each cell in the human body has
46 chromosomes
23 chromosomes
92 chromosomes
46 pairs of chromosomes
_____1.
_____2.
_____3.
_____4.
_____5.
_____6,
_____7.
_____8.
homozygous
offspring
alleles
heterozygous
Punnett Square
dominant
chromosome
recessive
A.
B.
C.
D.
E.
F.
G.
H.
2. Each sex cell in the human body has
A. 46 chromosomes
B. 23 chromosomes
C. 92 chromosomes
D. 46 pairs of chromosomes
AA shows this trait, which is what can always be observed
two of the SAME trait
tt shows this trait
organized structure of DNA and protein found in cells
forms of genes represented with letters
children or young of parent
two DIFFERENT traits
chart that chows all possible combinations of alleles between two parents
Patterns of Inheritance
Write in the correct alleles in the squares and circles that match the description below.
1. The FATHER is homozygous dominant and the MOTHER is homozygous recessive for a certain trait.
2. Complete Punnett Square #1 to determine the possible combinations of alleles for each of the offspring’s
trait possibilities.
3. What is the percentage of offspring with the dominant trait and with the recessive trait?
___Generation
#1
_____ % will have the
dominant trait.
_____ % will have the
recessive trait.
___Generation
___Generation
.
In the 2nd Generation above you should have alleles written for the circled parents. Use these alleles to fill in
the Punnett Square #2 to figure out the possible outcome for each offspring. What are the percentages for
this parent combination?
#2
____% will have the dominant trait.
____% will have the recessive trait.
Extra Credit
1. The type of reproduction that
occurs with one parent.
A. sexual
B. asexual
C. traits
D. characteristics
2. The process by which the DNA from
one cell is injected into a new cell.
A. asexual reproduction
B. sexual reproduction
C. cloning
D. dominant
3. The study of variation and heredity.
A. genealogy
B. sexual reproduction
C. genetics
D. traits
4. A change in the DNA can cause a
A. single-celled
B. mutation
C. fertilization
D. characteristic
5. An organism that is heterozygous for a trait.
A. single-celled
B. mutation
C. carrier
D. trait
6. A condition that causes a pattern of physical changes
A. syndrome
B. carrier
C. fertilization
D. characteristic