A human female with Turner syndrome $(47, X)$ also expresses the X-linked trait hemophilia, as did her father. Which of her parents underwent nondisjunction during meiosis, giving rise to the gamete responsible for the syndrome?

Gene therapy is being investigated as a medical tool. In this therapy, modifi ed genetic material is introduced into human cells in attempts to cure genetic diseases. What are some advantages and some dangers associated with this approach?

Human ova and sperm are similar in that a. about the same number of each is produced per month. b. they have the same degree of motility. c. they are about the same size. d. they have the same number of chromosomes.

Realizing what he had done, he rushed back to Bacchus, begging to be released from the _______ fate of starving on golden food. a. tragic human b. beyond limits c. excessive d. very unusual

Marine biology. For a diver using scuba-diving gear, a marine biologist estimates the time (duration) of a dive according to the equation

$$T(V,x)=\frac{33V}{x+33}$$

where

$$\begin{align*} T&=\text{time of dive in minutes}\\ V&=\text{volume of air, at sea level pressure, compressed into tanks}\\ x&=\text{depth of dive in feet}\\ \end{align*}$$

Find $T(70,47)$ and $T(60,27)$.

Use the following terms to create a concept map: geologic time, Paleozoic Era, Mesozoic Era, stromatolite, Precambrian time, eurypterid, crinoid, Cenozoic Era, trilobite, saurischian, ornithischian, dinosaur, mammal, and human.

Normal human body temperature is $98.6^{\circ} \mathrm{F}$. If a temperature x that differs from normal by at least $1.5^{\circ}$ is assumed unhealthy, write the condition for an unhealthy temperature x as an inequality involving an absolute value, and solve for x.

Discuss the molecular biology of antigenic shift in influenza viruses and comment on the immunological consequences for the host. Why does antigenic shift prevent the production of a single universally effective vaccine for influenza control? Next, compare antigenic shift to antigenic drift. Which causes the greatest antigenic change? Which creates the biggest problems for vaccine developers? Which can lead to pandemic influenza, and why?

$$\textbf{ Identify the meaning of the word by the suffix. \it{The medical terms below are commonly used by people who are not necessarily in the medical field. Using what you may already know, identify the meaning of the suffix of medical terms. Match the definition on the left with the correct term it is describing on the right.}} \textbf{\color{#c34632}{{ LO 1.3}}}$$

____________removal of a. agoraphobia b. pneumonectomy c. dentist d. dermatitis e. biology

In which structure would you expect to find a cell wall? A. a human skin cell, B. a cell from an oak tree, C. a blood cell from a cat, D. a liver cell from a mouse.

Refer to the Biology of Sport (Vol. 31, 2014) study of the physiological performance of top-level water polo players. Recall that data for eight Olympic male water polo players were used to model y = mean heart rate as a straight-line function of x = maximal oxygen uptake. Find an estímate of $\sigma$, the standard deviation of the error of prediction, on the MINITAB printout. Give a practical interpretation of this value.

Humans can distinguish up to $18,400,000$ individual dots called pixels on a typical computer display. Can a human distinguish pixels on a same-sized HDTV with $2 \times 10^6$ pixels? Explain.

You would like to design an aircraft that can be flown by human power nonstop for a distance of $30\ \text{km}$. What types of material properties would you recommend? What materials might be appropriate?

Complete the sentence by writing the correct form of the word shown in parentheses. You may not need to change the form that is given.
____________ The human body often shows great __________ in healing itself after an injury. (resilient)