Which of the following disorders results from changes in an individual gene?

A. Klinefelter's syndrome

B. Sickle-cell disease

C. Trisomy 21

D. Turner's syndrome

Which cell organelle is the site of cellular respiration

You have discovered a new species of microbe. This microbe is unicellular, has a cell wall, and possess ribosomes. This microbe is most likely which of the following? a. a bacterium b. a protist c. a fungus d.

The plant below is purebred for height tall. Write the alleles of this plant. In any cross for height, what kind of Offspring will this plant produce? Why?

Which of these sets of physical characteristics is used to classify animal groups? A. body size B. number of legs C. body cavity type D. method of reproduction

What part of the brain is responsible for long term memory?

Animal cells are permeable to water and urea but NOT to sucrose. The inside of a cell contains 1 M sucrose and 1 M urea and the outside 1 M sucrose and 2 M urea. After the system reaches equilibrium, what changes are observed?

How has human activity impacted the evolution of the peppered moth?

Which feature of sugarcanes suggests that they are stems? The presence of scaly leaves and axillary buds A high quantity of sugar The development of adventitious roots

How was the wildlife affected by hurricane sandy in 2012

What is the difference between a leading and lagging strand?