How do restriction endonucleases work?

They add nucleotides to DNA.

They cut DNA at specific sequences.

They cause gene mutations.

Explain why scientists believe that most animals would become extinct if all plants dies

When chickens with splashed white feathers are crossed with black-feathered birds, their offspring are all slate blue (Blue Andalusian).

Breathing is a coordinated effort of respiratory organs to A. receive nitrogen. B. receive carbon dioxide. C. eliminate oxygen. D. receive oxygen

A Punnett square for a cross involving 2 genes (each with 2 alleles) has 4 rows and 2 columns. True or False?

A patient asks you to recommend a laboratory for the test ordered by the provider. Will you respond to the request? What are some factors that will influence your response?

Describe the 5 types of species interactions

A well supported testable explanation of phenomena that have occurred in the natural world is called

What is the first step of the Calvin-Benson cycle? ATP and NADPH combine to make G3P. G3P is used to make glucose and other compounds. ATP and G3P combine to make RuBP. Carbon dioxide and RuBP combine to make PGA.

Typhoid fever is caused by bacteria in contaminated food or drink. In 1903, an outbreak of typhoid fever in Ithaca, New York, killed almost 80 people. In addition, more than 1,000 Ithaca residents became sick with the disease.

Explain why multicellular organisms require a ventilation system? include reasons on surface area to volume ratio cells depp within the body and number of cells