Why is price elasticity of demand usually a negative number?A) Because price and quantity demanded move in opposite directionsB) Because prices are always fallingC) Because quantity demanded is fixedD) Because total revenue always increases

A local clothing store raises the price of its trendy T-shirts by 25%, and sales drop by 60%. What does this tell you about the demand for these T-shirts?A) InelasticB) Unit elasticC) Highly elasticD) Perfectly inelastic

Chloe has the scaly skin condition ichthyosis, which is X-linked recessive.Which of the following is most likely true?

Mode of inheritance reflects

X-linked dominant traits are typically expressed

This pedigree depicts a family with some members who have albinism, an autosomal recessive condition.If individuals II-2 and II-3 have another baby, what is the probability that it will have albinism?

Secondary spermatocytes and secondary oocytes are

In a Punnett square where are the gametes listed?

In general, RNA molecules

The number of sets of our genome in most of our cells is _________.