WorksheetsBiology Summative
Total questions: 25
Worksheet time: 25mins
Name
Class
Date
1.
Which sequence of complementary DNA bases would pair with this partial strand
ATG TGA CAG?
ATG TGA CAG?
a)
ATG TGA CAG
b)
TAC ACT GTC
c)
GTA AGT GAC
d)
CAT TCA CTG
2.
Which 2 molecules form the sides (backbone) of the DNA ladder?
a)
deoxyribose sugar and adenine
b)
deoxyribose sugar and a hydrogen bond
c)
deoxyribose sugar and the nucleus
d)
deoxyribose sugar and phosphate
3.
A process in which DNA has the unique ability to make an exact copy of itself.
a)
Replication
b)
Translation
c)
Transcription
d)
Protein Synthesis
4.
During interphase the cell ___________.
a)
divides into two cells
b)
divides its nucleus
c)
replicates its DNA
d)
replicates the organelles within the cell
5.
After interphase is completed the cell moves into the next stage of the cell cycle called _________.
a)
anaphase
b)
cytokinesis
c)
metaphase
d)
mitosis
6.
The following describes ________ during mitosis. The chromosomes line up along the center of the cell and the spindle fibers attach to each chromosome at the centromere.
a)
prophase
b)
metaphase
c)
anaphase
d)
telophase
7.
What is the correct term for "the basic building block of all living organisms"?
a)
cell
b)
cell cycle
c)
cell plate
d)
centriole
8.
Which statement best describes the importance of sexual reproduction?
a)
sexual reproduction produces variation in offspring
b)
sexual reprosuction provides regeneration of body parts
c)
sexual reproduction occurs between individuals of the same species
d)
sexual reproduction produces offspring that are identical
9.
Which of the following cell types is formed by meiosis?
a)
skin cells
b)
sperm cells
c)
blood cells
d)
muscle cells
10.
If an intestinal cell in a butterfly contains 24 chromosomes, a butterfly egg cell would contain___________.
a)
12 chromosomes
b)
6 chromosomes
c)
3 chromosomes
d)
24 chromosomes
11.
When an area of a chromatid is exchanged with the matching area on a chromatid of its homologous chromosome, ____ occurs.
a)
mutagenesis
b)
hybridization
c)
crossing over
d)
fertilization
12.
Homozygous is when...
a)
the alleles are the same
b)
the alleles are different
c)
the alleles are absent
d)
the alleles are present
13.
Heterozygous is when...
a)
the alleles are the same
b)
the alleles are different
c)
the alleles are absent
d)
the alleles are present
14.
What mutation has occurred here?
T-G-A-C-C-A
T-G-A-G-C-A
T-G-A-C-C-A
T-G-A-G-C-A
a)
Substitution
b)
Deletion
c)
Insertion
d)
Frameshift
15.
Bacteria is what kind of cell?
a)
Eukaryotic
b)
Prokaryotic
16.
What type of cell does not have a nucleus?
a)
eukaryotic
b)
prokaryotic
17.
Which of the following would be found in both eukaryotic AND prokaryotic cells?
a)
chloroplast
b)
cytoplasm
c)
nucleus
d)
endoplasmic reticulum
18.
Which is Heterozygous?
a)
Tt
b)
BB
c)
ff
d)
Dominant
19.
Which is homozygeous?
a)
Tt
b)
BB
c)
Ff
d)
Blue
20.
What is the evaporation of a liquid to cool the body?
a)
Shivering
b)
Sweating
c)
Vasodilation
d)
Vasoconstriction
21.
Homeostasis
a)
allows for a wildly fluctuating internal environment
b)
is impossible in vertebrates
c)
is the maintenance of a relatively stable internal environment and often incorporates a form of feedback regulation
d)
is the maintenance of a relatively stable external environment and often incorporates a form of feedback regulation
22.
Which of the following sequences represents the correct order of events in the formation of a human fetus?
a)
Zygote → Blastocyst → Embryo → Fertilization
b)
Fertilization → Zygote → Blastocyst → Embryo
c)
Blastocyst → Embryo → Differentiation → Zygote
d)
Fertilization → Growth → Differentiation → Zygote
23.
Which cell structure allows molecules to enter and leave the cell?
a)
Cell Membrane
b)
Nucleus
c)
Mitochondria
d)
Cytoplasm
24.
Which cell organelle is most responsible for photosynthesis?
a)
Nucleus
b)
Mitochondria
c)
Chloroplast
d)
Cell Wall
25.
Identify basic examples of homeostasis.
a)
Balanced rate of absorbing and using food + oxygen
b)
Steady regulation of heart rate and body temperature
c)
Movement of water molecules through a cell membrane
100 %
