What are plasmids?

small rings of bacterial DNA

simple organisms with only one chromosome

enzymes that cut DNA

enzymes that bond genetic material together

A founding population of lizards arrives on an island. Which type of isolation would most likely result in this population becoming a new species?

Say we have a population, with Ne = 100, containing two alleles, A1 and A2 at frequencies 0.6 and 0.4, respectively.

Purple loosestrife is an invasive plant that was brought to the United States in the 1800s. Which of the following describes the most likely long-term consequence of the introduction of purple loosestrife? A.

Why is the osmolarity of the medullary fluid in the kidney greater than the osmolarity of the blood plasma?

What is a characteristic that increases an organisms ability to survive and reproduce in an environment?

What is the product of transcription and translation

Which of the following would be considered a benefit of overpopulation A the increase in genetic variation of a population B the exponential growth of a population C the exchange of genetic material between populations D the change in an ecosystem

Which degree of contusion is characterized by superficial and some deep tissue damage, mild to moderate weakness with no muscle spasm, moderate loss of function, ecchymosis and swelling, and decreased ROM?

How many chromosomes do humans have?

Pairing of homologous chromosomes in prophase of meiosis I appears to be critical for proper alignment, crossing over, and subsequent separation. This pairing is facilitated by the sharing of sequence homology between homologous chromosomes.