These are two structural differences between DNA and RNA.
What are: DNA has a different sugar, RNA has U vs T, RNA is single stranded
100
A major reservoir for oxygen is the atmosphere. Which of the following processes adds oxygen to the atmosphere?
A. cellular respiration
B. photosynthesis
C. decomposition
What is "B" - photosynthesis
100
The complementary sequence for the DNA strand
A T C G A T
What is T A G C T A ?
100
Which of the following human activities reduces biodiversity?
A. prohibiting hunting in wildlife preserves
B. planting native grass species to prevent erosion beside highways
C. planting only red pine trees to replace native hardwood forests cut for lumber
What is "C" - planting only red pine trees to replace native hardwood forests cut for lumber
100
Which of the following statements provides the best scientific evidence that chimpanzees and rhesus monkeys come from a common ancestor?
A. They have similar genetic sequences.
B. They live in similar habitats.
C. They have similar nutritional needs.
What is "A" - They have similar genetic sequences.
200
This is the process in which a section of DNA is copied into a portable strand of RNA
What is transcription?
200
Which of the following roles do nitrogen-fixing bacteria serve in the nitrogen cycle?
A. converting nitrogen into a form usable by plants
B. concentrating nitrogen in the atmosphere.
C. releasing nitrogen from decaying organisms.
What is "A" - converting nitrogen into a form usable by plants
200
The name of the DNA monomer.
What is a nucleotide?
200
Approximately 250 million years ago, over 90% of species living in the oceans became extinct. Which of the following conditions most likely contributed to this mass extinction?
A. changes in global climate
B. mutation of species’ DNA sequences
C. geographic isolation
D.
increases in the rates of photosynthesis
What is "A" - changes in global climate
200
Sperm whales have vestigial hip bones. What explains the presence of these vestigial structures in sperm whales?
What is the inheritance of these structures from an ancestor with hind limbs.
300
In translation, _____________ are linked together to form proteins. This happens at the ____________.
What are amino acids and ribosome?
300
These two processes add carbon dioxide to the atmosphere.
What are (pick any two):
combustion i.e. burning
decomposition
cellular respiration
volcanic activity
300
DNA replication must occur before this cellular process can occur.
What is (any of the following):
mitosis
meiosis
cell division
300
Which of the following is currently a primary cause of species decline worldwide? A. habitat destruction B. intraspecific competition C. reproductive barriers and nonrandom mating
What is "A" - habitat destruction
300
Fish, frogs, birds, and monkeys all have an embryonic stage in which structures called pharyngeal slits appear on the sides of the throat. In fish, these slits develop into gills, but in frogs, birds, and monkeys, these slits develop into other structures.
Based on this information, which of the following is the best conclusion about the evolutionary histories of fish, frogs, birds, and monkeys?
What is they share common ancestry.
400
Which type of cell must contain a mutation in order for the mutation to be passed from a parent to their offspring?
A. a somatic cell
B. a diploid cell
C. a gamete
D.
skin cell
What is "C" - gamete
400
These process determine the balance of water a plant has in its tissues.
A. runoff and root absorption
B. precipitation and photosynthesis
C. root absorption and transpiration
What is "C" - root absorption and transpiration
400
This part of the DNA molecule stores the genetic code
a) the sugar phosphate backbone
b) complementary base pairs
c) sequence of nitrogen bases
What is "C" - the sequence of nitrogen bases.
400
An endangered species is most vulnerable to extinction when it has which of the following characteristics?
A. a high birthrate
B. a large variety in its diet
C. a small amount of genetic diversity
What is "C" - a small amount of genetic diversity
400
Fossils typically provide evidence for evolution because...
What is they show patterns of biological change.
500
A mutation occurs in an individual, but the individual’s phenotype does not change. Explain.
A. The mutation deleted a portion of a coding section of the DNA.
B. The mutation affected a DNA nucleotide, but not the sequence of amino acids.
C. The mutation changed a section of DNA, but not the RNA sequence.
What is "B" - The mutation affected a DNA nucleotide, but not the sequence of amino acids.
500
Plants take in nitrogen from the _________ to make molecules such as ___________.
What are soil and DNA or proteins?
500
The end result of DNA Replication.
What are 2 identical DNA molecules?
500
Which of the following factors has the most influence on whether iguanas on two different islands will undergo speciation?
A. how much variation there is in iguana body sizes
B. how many base pairs are in the iguanas' DNA
C. how different the island environments are from one another
What is "C" - how different the island environments are from one another
500
The bones that make up the forelimbs of monkeys, cats, whales, and birds are similar. What is type of evidence is this an example of and what does it show about the evolution of these organisms?
What are homologous structures, a type of anatomical evidence.
These structures indicate the inheritance of similar genes from common ancestry.