Review Game Zone
Flash Cards
(current)
Games
Teachers
Search
8th Grade Final Exam
Test Description: Final exam
Instructions: Answer all questions to get your test result.
1) How does a geneticist use pedigrees?
A
to create genetic crosses
B
to trace the inheritance of traits in humans
C
to replicate identical strings of DNA
D
to prove that sex-linked traits are caused by codominant alleles
2) Which combination of sex chromosomes results in a male human being?
A
XY
B
XYY
C
XX
D
YY
3) Which of the following statements is part of the cell theory?
A
All cells are produced from other cells.
B
Cells can be produced from nonliving matter.
C
Cells are one of several basic units of structure and function in living things.
D
Only plants are composed of cells.
4) Mendel called plants that received different alleles for a trait from each parent ____.
A
zenotypes
B
phenotypes
C
zealots
D
hybrids
5) Which pair of structures can be found ONLY in plant cells?
A
vacuoles and an endoplasmic reticulum
B
chloroplasts and a cell wall
C
ribosomes and a nucleus
D
mitochondria and a cell membrane
6) A paleontologist discovers a fossil within a layer of rock. The paleontologist can probably conclude ____.
A
the rock layer formed before the species represented by the fossil existed on Earth
B
the rock layer formed during the time that the species represented by the fossil existed on Earth
C
the rock layer formed after the species represented by the fossil had become extinct
D
the ages of the rock layer and the species represented by the fossil are not related
7) Structures as different as human arms, bat wings, and dolphin flippers contain many of the same bones, these bones having developed from very similar embryonic tissues. How do biologists interpret these similarities?
A
By the principle of convergent evolution
B
By the principle of divergent evolution
C
A and C only
D
By proposing that humans, bats, and dolphins share a common ancestor
8) Fossils of some intermediate forms have not been found because
A
fossils are very rare; fossils of only a small fraction of all species have been found
B
species produced by punctuated equilibrium do not leave fossils
C
all fossils are the same age
D
new types of organisms can appear suddenly without progressive changes determined by natural selection
9) On a pedigree, a half-shaded circle represents a(n)
A
affected female
B
carrier female
C
carrier male
D
unaffected female
10) ___________ is the control center of the cell; directs cell activities.
A
cell membrane
B
nucleus
C
ribosomes
D
endoplasmic reticulum
*select an answer for all questions
Check Results & Get Answers
Play Games with the Questions Above
Teachers: Create FREE classroom games with your questions
Click for more info!
©2007-2024
ReviewGameZone.com
|
About
|
Privacy
|
Contact
|
Terms
|
Site Map
WAIT! Find what you needed?
×
Still Looking for the Answers?
Have Another Question?
Play a Review Game with These Questions?
Want to Make Your Own Test Like This One?