A change in one nucleotide produces a different form of hemogoblin in some people. which condition results from this change?

1. diabetes

2. down syndrome

3. sickle cell disease

4. cancer

A scientist is studying a cross between plants that are heterozygous (Xx) for a certain trait. She will use a table similar to this one to make a Punnett square for the cross.

Describe how chromosomes and centrioles are related to one another

Both plant and animal cells contain- a. a cell membrane, cell wall, and a nucleus. b. a cell membrane, cytoplasm, and a nucleus. c. mitochondria, a cell membrane, and chloroplasts. d. mitochondria, a cell wall, and chloroplasts.

What is the best description of the process that occurs in the starter to give sourdough its famous tangy flavor?

Which plant structures are common to all angiosperm? A. spores B. flowers C. cones D. endoskeleton

on October 6, both fin and humpback whales were heard in the same area at 1:30 am and at 2:30 am why do you think both species might have made noises at the same time.

The broadest classification level for organisms is A. kingdom, which includes Archaea, Bacteria, and Eukarya. B. kingdom, which includes Animalia, Plantae, and Fungi. C. domain, which includes Archaea, Bacteria, and Eukarya. D.

These are all highly contagious foodborne illnesses that result from biological contaminants, except:

Use the drop-down menus to complete the statements. Japanese honeysuckle is found in the United States. It outcompetes other plants by blooming early and dying off late. This is an example of.

What do the fossil skeletons tell us about the evolution of today's whales?