In humans, normal vision dominates color-deficiency, and both are X-linked. (The genes are located on the X chromosome.) A color-deficient male marries a woman who is heterozygous for normal vision. If they have a boy, the chance that he will be color-deficient is 

A. 100%.
B. 0%.
C. 75%.
D. 50%.


D. 50%.

Biology & Microbiology

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Rhythmic leaf folding is a type of __________, an

event repeated on a 24-hour cycle. Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

Competition for one resource often influences the ability of an organism to access other resources

Indicate whether the statement is true or false

Biology & Microbiology

Structures that will develop into leaves and buds arise at a lateral meristem

____________________ Indicate whether the statement is true or false.

Biology & Microbiology

List the following taxonomic categories from the most specific to the most general:

genus, domain, family, phylum, order. What will be an ideal response?

Biology & Microbiology