BIOL-1033 Exam #4 EXAM QUESTIONS AND VERIFIED SOLUTIONS
|2026/2027| Exam Questions & Answers Test || ELABORATED &DETAILED
ANSWERS!!
1. The human blood type AB in which both the A antigen Codominance
and the B antigen are found embedded in the blood
cells is an example of
2. An X-linked gene is a gene on the X chromo-
some
3. A man and a woman are both heterozygous carriers 25%
for the recessive allele that causes cystic fibrosis. What
is the probability that they will have an offspring who
has cystic fibrosis?
4. All the offspring of a cross between a red-flowered incompletely dominant
plant and a white flowered plant have pink flowers.
This means that the allele for red flowers is _______ to
the allele for white flowers.
5. The origin of mitochondria in a eukaryotic cell is ex- Endosymbiosis of an aero-
plained by bic bacterium
6. Which would be most likely to be fossilized? a common thick-shelled
crustacean
7. You uncovered a fossil that you suspect is around 100 Carbon-14/Nitrogen-14
million years old. Which of the radioisotope pairs in the
table could you eliminate as an appropriate choice for
radioisotope dating the accompanying rock?
8. The Earth's atmosphere has changed a lot over the Oxygen (O2)
past 4 billion years. One big change was due to photo-
1/7
, BIOL-1033 Exam #4 EXAM QUESTIONS AND VERIFIED SOLUTIONS
|2026/2027| Exam Questions & Answers Test || ELABORATED &DETAILED
ANSWERS!!
synthetic organisms. Their photosynthesis increased
the amount of what atmospheric gas?
9. The first living cells were most likely Anaerobic prokaryotes
10. The process by which the major land masses have Continental drift (plate
shifted their positions, changed shapes and separated tectonics)
from each other, is known as
11. The likelihood of allopatric speciation increases when Small ; isolated from
a splinter population is __________ and __________ the
broader range of the species.
12. Today there are 54 different honeycreepers in Hawaii. Adaptive radiation
The ancestor of the honeycreepers was the European
rosefinch. The evolution of many species of honey-
creeper is the result of
13. During the Beagle journey, Darwin visited islands, al- Because the island species
lowing him to compare island species with continental had both similarities to
species. In terms of framing his theory of evolution, their continental ancestors
why was this significant? and unique adaptations to
their island environments.
14. Which scenario best illustrates the process of natural artificial selection ( selec-
selection? (See image to right) These 3 breeds of dogs tive breeding)
are the result of
15. What field of study uses geographic distribution of Biogeography
extinct and living species to determine patterns of evo-
lution?
2/7
|2026/2027| Exam Questions & Answers Test || ELABORATED &DETAILED
ANSWERS!!
1. The human blood type AB in which both the A antigen Codominance
and the B antigen are found embedded in the blood
cells is an example of
2. An X-linked gene is a gene on the X chromo-
some
3. A man and a woman are both heterozygous carriers 25%
for the recessive allele that causes cystic fibrosis. What
is the probability that they will have an offspring who
has cystic fibrosis?
4. All the offspring of a cross between a red-flowered incompletely dominant
plant and a white flowered plant have pink flowers.
This means that the allele for red flowers is _______ to
the allele for white flowers.
5. The origin of mitochondria in a eukaryotic cell is ex- Endosymbiosis of an aero-
plained by bic bacterium
6. Which would be most likely to be fossilized? a common thick-shelled
crustacean
7. You uncovered a fossil that you suspect is around 100 Carbon-14/Nitrogen-14
million years old. Which of the radioisotope pairs in the
table could you eliminate as an appropriate choice for
radioisotope dating the accompanying rock?
8. The Earth's atmosphere has changed a lot over the Oxygen (O2)
past 4 billion years. One big change was due to photo-
1/7
, BIOL-1033 Exam #4 EXAM QUESTIONS AND VERIFIED SOLUTIONS
|2026/2027| Exam Questions & Answers Test || ELABORATED &DETAILED
ANSWERS!!
synthetic organisms. Their photosynthesis increased
the amount of what atmospheric gas?
9. The first living cells were most likely Anaerobic prokaryotes
10. The process by which the major land masses have Continental drift (plate
shifted their positions, changed shapes and separated tectonics)
from each other, is known as
11. The likelihood of allopatric speciation increases when Small ; isolated from
a splinter population is __________ and __________ the
broader range of the species.
12. Today there are 54 different honeycreepers in Hawaii. Adaptive radiation
The ancestor of the honeycreepers was the European
rosefinch. The evolution of many species of honey-
creeper is the result of
13. During the Beagle journey, Darwin visited islands, al- Because the island species
lowing him to compare island species with continental had both similarities to
species. In terms of framing his theory of evolution, their continental ancestors
why was this significant? and unique adaptations to
their island environments.
14. Which scenario best illustrates the process of natural artificial selection ( selec-
selection? (See image to right) These 3 breeds of dogs tive breeding)
are the result of
15. What field of study uses geographic distribution of Biogeography
extinct and living species to determine patterns of evo-
lution?
2/7
