The allele for a widow’s peak has complete dominance over the allele for a straight hairline (w). what is the probability of a man with a straight hairline (ww) and a woman with a widow’s peak (ww) having an offspring without a widow’s peak?
0 percent
75 percent
25 percent
50 percent

What was the land like over 500 million years ago? what was under the sea?

Identify the terms using the following picture. principle of dominance item 1 can be described as the . item 2 can be described as the . the "p" represents from one parent.

2. how does the miller-urey experiment fall short of demonstrating that life can arise from inorganic molecules? explain. a. it doesn't show a leap between a collection of amino acids and a single-celled organism. b. it recreates the conditions that existed at the earth's beginning, but no molecules form as a result. c. it doesn't provide evidence of the formation of amino acids. d. it doesn't show how multicellular organisms developed from unicellular organisms