Biology Exam

The fossil record shows

According to the rules of binomial nomenclature, which is capitalized?

Why are stem cells important?

Humans cells have the diploid number of

An example of a trait determined by multiple alleles is

During eukaryotic transcription, the molecule that formed is

What did Avery conclude caused transformation?

Which is the correct order of the phases of mitosis?

How would you give an age of a sample of rock that you think is one of the oldest on Earth?

Variation in human skin color is an example of

Sexual reproduction contributes to genetic diversity by allowing

Earth’s early atmosphere was made of mostly

Which type of regulatory protein helps speed up or slow down the cell cycle?

To be useful as an index fossil, a species must have existed for a

When a farmer breeds only his or her best livestock, the process involved is

For 2 heterozygous (RrYy), how many different phenotypes are their offspring expected to show?

What principle states - alleles for each gene - each gamete carries 1 allele for each gene?

What would Hershey & Chase have concluded if radioactive 32P & 35S were found in their exprment

The possibility of flipping a coin twice and getting two heads is

Modern fish called coelacanths are almost identical to their fossils. This species evolved by

What is one new technology that could make stem cell research less controversial?

Which event occurs during interphase?

Which of the following is a correct statement about the vents of the cell cycle?

In eukaryotic cells, the timing of the cell cycle is regulated by

The divisions of the Geologic Time Scale

In contrast to Linnaean taxonomy, cladistic analysis considers only which kind of traits?

Although they live in the same habitat, 2 toad species breed at different times. This means

The Galapagos finches are an example of

There are 64bcodons and 20 amino acids, which of the following is true?

Which part of bacteriophage in Figure 12-1 is the genetic material?

Which is an example of a totipotent cell?

Compared to small cells, large cells have more trouble

In the pun. square Which of the following is true about The Offspring resulting from the cross?

The type of genetic drift that follows colonization of a new habitat by a small group is called

A promoter is a

Crossing - over occurs during

The Galapagos finch species are an excellent example of

A change in the genetic material of a cell is called a

What does a cladistic analysis show about organisms?

If a pea plant has one recessive allele or green peas, its Offspring will

Why did Thomas Hunt Morgan use fruit flies in his studies?

During translation, the type of amino acid that is added to the growing polypeptide depends on

The separation of populations by barriers such as rivers, mountains, or bodies of water is

Which Stage of the cell cycle is the longest?

Linked genes

Darwin called the ability of an organism to survive and reproduce in its specific environment

Which is TRUE about the Miller and Urey experiments?

DNA replication results in two DNA molecules,

The name for programmed cell death is

A polygenic trait can have

What do Hox genes control?

Darwin's concept of natural selection was NOT influenced by

The farther apart two genes are located on a chromosome, the

According to the cladogram, which is TRUE?

The endosymbiotic theory says that eukaryotic cells

To compare the relative ages of rocks, scientists use a widespread and easily recognizable

if a pea plants genotype for height is tt,(T is tall) what is true of its parents?

What is produced during transcription?

An advantage of sexual reproduction over asexual reproduction is that sexual reproduction

Molecular evidence in support of natural selection includes

The structures labeled B in figure 10-1 are called the

Most fossils are found in

At any level of organization, groups that have biological meaning are referred to as

During which phase in the cell cycle does mitosis happen?

Genetic recombination includes the independent movement of chromosomes during meiosis and

If a mutation introduces a new color, what would determine if the new allele increases?

James Hutton's and Charles Lyell's work suggests that

What does the presence of similar DNA sequences in the genes in very different organisms imply?

Which of the following clades is most likely to survive a series of catastrophic events?

1 difference between cell division in plant cells and in animal cells is that plant cells have

What regulates the expression of most eukaryotic genes?

The structure labeled A in figure 10-1 is called the

The surface area to volume ratio

According to the results of our diffusion and cell size lab with agar cubes and vinegar

There is much variation in offspring due to

What cell structures contain DNA that can be used to determine evolutionary relationships?

The kingdom that contains unicellular organisms that live in very hot or salty enviroments is

The number and location of bones in fossils is similar to living vertebrates. This supports

The genes carried by all members of a particular population make up the population's

In humans, some bones are involved in walking. In whales, these same bones are called

Which is NOT true about extinction?

The allele frequencies of a population are more likely to change if

Why is the kingdom “Protista” NOT a clade under evolutionary classification?

Biogeography is the study of

Which of the following can produce a duplicate gene?

What are some characteristics of polyploidy plants?

Hox genes

When classifying organisms, a monophyletic group includes one

One reason common names (not scientific names) are difficult to use is that they

All speckled (black and white) offspring (BW). This type of inheritance is known as

Speciation is an example of

The length of time required for half of radioactive atoms to decay is

What do bacteriophages infect?

On the Galapagos Islands, Charles Darwin observed

In figure 12-2, what is adding base pairs to the strand?

Who won the Noble Prize for the double helix structure of DNA?

Which nucleotide in Figure 13-1 indicates the nucleic acid above is RNA?

Gametes have

When during the cell cycle are chromosomes able to be seen under the light microscope?

In genetic drift, the allele frequencies in a gene pool change because of

A single-gene trait that has two alleles and shows a simple dominant-recessive pattern will

What is shown in figure 11-1?

During-division a parent cell has 4 chromosomes will produce 2 daughter cells each containing

The principle of common descent helps explain why

Because of base pairing in DNA, the percentage of

The grouping of organisms based on their common descent is called

According to Darwin's theory of natural selection, some individuals survive due to the

The basic divisions of the geologic time scale, from larger to smaller, are

Which is an advantage of having a cell's DNA bundled into separate chromosomes?

Which of the following statements must be true for a clade to survive?

Often, the second part of a scientific name is

In eukaryotes, DNA

The Australian and American flying squirrels are very similar. This is most likely due to

If an organism's diploid number is 12, its haploid number is

Which scientist made x-ray diffraction photos of DNA?

One scientific hypothesis about the origin of life holds that

Fossilized evidence of Earth's first forms of life would consist of

A plant evolves a high level of poison and the insect that eats it evolves a defense. This is

When during the cell cycle does the cell grow larger and add more organelles?

All organisms in the kingdoms Protista, Fungi, Plantae, and Animalia are

The economist Thomas Malthus suggested that

What process would most likely be the reason for a fossil being found on 2 continents?

The two kingdoms composed of only unicellular organisms are

What principle does the Grants' investigation of finches best support?

Which of the following are found in both DNA and RNA?

Which of the following assort independently

Which of the following happens when a cell divides?

The species of finches that Darwin found on the different islands varied in what adaptation?

Which of the following is a possible future benefit of stem cell research?

Which kingdom contains heterotrophs with cell walls of chitin?

In a population, the allele frequency for red fur changes from 20 to 30%. What happened?

Darwin's theory of evolution by natural selection explains each of the following EXCEPT how

A gene map shows

Later in the development, the cells become specialized through a process called

Gradualism is a pattern of evolution in which