When one or more genes are lost from a chromosome what is it called

Which period was the "golden age of dinosaurs"? a. the Triassic Period b. the Jurassic Period c. the Cretaceous Period d. the Tyrannosaurus Period

In a particular species of butterfly, the genes for two different traits, antenna shape and antenna color, are located on the same chromosome. As a result, crosses between these butterflies do not obey one of Mendel's laws.

Which statement describes a catastrophe in The Tragedy of Julius Caesar?

Which of the following phyla contains only marine animals? Arthropoda Chrodata Echinodermata Mollusca

What was the greatest step toward the discovery of cells?

Antarctica is covered in ice. which of the following would you expect to be true of Antarctica? A. The ice is immune to insolation B. The ice has no heat capacity C. The ice has a high albedo D. The ice reflects no radiation

Mateo eats his breakfast and his gi tract will now begin the process of digesting and absorbing the nutrients from this meal. what is the order in which each of the organs of the gi tract will work to achieve this process?

Diffusion is the spontaneous movement of a substance from an area of what

Which type of mutation always creates a stop codon?

What is the main mechanism for regulating hormone secretion?