Sperm use ____ for their energy source
a. fructose
b. glucose
c. ions
d. semen
e. prostate gland secretions
A
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Giardia intestinalis and Trichomoniasis vaginalis lack ________ and have ________
A) a flagellum / cilia instead B) mitochondria / an anaerobic metabolism C) a cell wall / a rigid cell membrane D) cysts / sporozoites instead
Two parents with Type A and Type B blood have a child with Type AB blood. How is this possible?
A. Type A blood is incompletely dominant to Type B blood. This means that individuals with alleles for both Type A and Type B will express a blended intermediate between these two blood types. B. Type A blood is codominant with Type B blood, so both alleles are expressed equally. C. Type A blood is co-recessive with Type B blood, so as long as there is not a dominant blood type present, both recessive alleles will be expressed equally. D. This is not possible. The child cannot be their biological child.
If you want to prevent chromatin loops from being anchored to the chromosome scaffold, which regions of the DNA would you target?
What will be an ideal response?
A(n) ____________________ is a partly enclosed coastal region where seawater mixes with nutrient-rich fresh water from rivers and streams.
Fill in the blank(s) with the appropriate word(s).