BIOL-1033 Exam #4 2024 ACTUAL EXAM
QUESTIONS AND VERIFIED
ANSWERS /GET IT 100% ACCURATE|
ALREADY GRADED A+
The human blood type AB in which both the A antigen and the B antigen are found
embedded in the blood cells is an example of - ANSWERSCodominance
An X-linked gene is - ANSWERSa gene on the X chromosome
A man and a woman are both heterozygous carriers for the recessive allele that causes
cystic fibrosis. What is the probability that they will have an offspring who has cystic
fibrosis? - ANSWERS25%
All the offspring of a cross between a red-flowered plant and a white flowered plant
have pink flowers. This means that the allele for red flowers is _______ to the allele for
white flowers. - ANSWERSincompletely dominant
The origin of mitochondria in a eukaryotic cell is explained by -
ANSWERSEndosymbiosis of an aerobic bacterium
Which would be most likely to be fossilized? - ANSWERSa common thick-shelled
crustacean
You uncovered a fossil that you suspect is around 100 million years old. Which of the
radioisotope pairs in the table could you eliminate as an appropriate choice for
radioisotope dating the accompanying rock? - ANSWERSCarbon-14/Nitrogen-14
The Earth's atmosphere has changed a lot over the past 4 billion years. One big change
was due to photosynthetic organisms. Their photosynthesis increased the amount of
what atmospheric gas? - ANSWERSOxygen (O2)
The first living cells were most likely - ANSWERSAnaerobic prokaryotes
The process by which the major land masses have shifted their positions, changed
shapes and separated from each other, is known as - ANSWERSContinental drift (plate
tectonics)
The likelihood of allopatric speciation increases when a splinter population is
__________ and __________ the broader range of the species. - ANSWERSSmall ;
isolated from
