A woman who is color blind, a sex-linked trait, has several children with a man who has normal vision. What are the possible phenotypes of their children with respect to this trait?
What will be an ideal response?
All their daughters will have normal vision, while all their sons will be color blind.
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A seed from a yew tree germinates on the forest floor. During the first few months of its life, the sapling dedicates most of its resources to increasing in height rather than producing the defensive compound taxol
What is this allocation of resources an example of? A. a symbiosis B. a trade-off C. a constitutive defense D. an inducible defense E. a basal response
The ability to taste PTC and other bitter chemicals is controlled by ____
a. hormone levels that change throughout life b. the presence of fats and sugars in the food being eaten c. the amount of PTC exposure as a child d. the amount of capsaicin present in taste buds e. proteins on the surface of receptor cells
Where does the Calvin cycle occur?
a. thylakoid membrane b. thylakoid lumen c. stromal lamellae d. cytosol e. stroma
A 25-year-old woman is in early labor. After delivering the baby (by a normal vaginal delivery), the patient asks the doctor about some symptoms she had during pregnancy, including discharge and painful urination
She has a history of multiple sex partners and very rarely used condoms. You suspect a potential STD is the cause. The biggest risk at this point is ________. A) There is no major risk at this point. B) to the mother; an untreated STD is almost always fatal C) to the baby; he or she can be infected while moving through the birth canal D) to the mother; she may become infertile