Principles of Biology I - Unit 3 Quiz

An organism’s ________________ is determined by its _________________.

What are Barr bodies?

If one strand of a DNA molecule has the sequence ATTGCAT, then the complementary strand will have the sequence

What is the central dogma of molecular biology?

Nondisjunction results in

The principle that states that two alleles for a gene separate during gamete formation and are rejoined at random, one from each parent during fertilization is called

When more than one gene affects a trait, this is known as ____________ and an example of this can be found with _______________.

In certain flowers, the heterozygous condition is displayed as an intermediate phenotype between the two homozygous conditions. For example, crossing red snapdragons with white snapdragons produces pink snapdragons. This is an example of:

Nondisjunction of the sex chromosomes is much more likely to occur in women than in men because

If an organism’s DNA is known to be composed of 23% adenine, what percentage of their DNA would be composed of guanine?

The process in which DNA is used as a template to form another DNA molecule is called

In addition to adding bases to the growing DNA strand during replication, DNA polymerase is also responsible for

DNA is always synthesized in the __________ direction and because of this, the lagging strand is synthesized ______________, forming Okazaki fragments.

Some errors that may occur during DNA replication may be repaired. The type of repair that does not require the presence of light is known as:

What is added to eukaryotic transcripts following transcription

Where does translation occur in eukaryotes?

A mutation that alters a single base but does not alter the amino acid that is coded for is called a _________ mutation.

Which of the following is a good example of epistasis?