Hi, I'm Raechel!
I fell in love with science thanks to the amazing teachers who shared their passion with me. I would love to help break down the science so it's a little less complicated, and hopefully, help others to love it too!
Which situation would most likely lead to allopatric speciation?a. A flood causes the formation of a new lakeb. A storm causes several large trees to fall down.c. A mutation causes a new trait to develop.d. An injury causes an organism to seek out a new food source
Answers to questions and problems preceded by an asterisk can be found at the end of the book.How did Hopi culture contribute to the high incidence of albinism among members of the Hopi tribe?
Answers to questions and problems preceded by an asterisk can be found at the end of the book.Outline some of the ways in which genetics is important to all of us.
Answers to questions and problems preceded by an asterisk can be found at the end of the book.Give at least three examples of the role of genetics in society today.
Answers to questions and problems preceded by an asterisk can be found at the end of the book.Briefly explain why genetics is crucial to modern biology.
Answers to questions and problems preceded by an asterisk can be found at the end of the book.List the three traditional subdisciplines of genetics and summarize what each covers.
In German cockroaches, curved wings $(c v)$ are recessive to normal wings $\left(c v^{+}\right) .$ A homozygous cockroach having normal wings is crossed with a homozygous cockroach having curved wings. The $\mathrm{F}_{1}$ are intercrossed to produce the $\mathrm{F}_{2}$. Assume that the pair of chromosomes containing the locus for wing shape is metacentric. Draw this pair of chromosomes as it would appear in the parents, the $\mathrm{F}_{1}$, and each class of $\mathrm{F}_{2}$ progeny at metaphase I of meiosis. Assume that no crossing over takes place. At each stage, label a location for the alleles for wing shape $\left(c v \text { and } c v^{+}\right)$ on the chromosomes.
Which of the following is an example of qualitative data?(A) The fish swam in a zigzag motion.(B) The contents of the stomach are mixed every 20 seconds.(C) The temperature decreased from $20^{\circ} \mathrm{C}$ to $15^{\circ} \mathrm{C}$ .(D) The six pairs of robins hatched an average of three chicks each.
Where in a phylogenetic tree would you expect to find the organism that had evolved most recently?a. at the baseb. at the nodesc. at the branch tipsd. within the branches
What is the main prerequisite for clearance at the G2 checkpoint?a. The cell has a reached a sufficient size.b. The cell has an adequate stockpile of nucleotides.c. An accurate and complete DNA replication has occurred.d. Proper attachment of mitotic spindle fibers to kinetochores has occurred.
If a doctor injected a patient with what was labeled as an isotonic saline solution, but then the patient died, and an autopsy revealed that several of the patient's red blood cells had burst, would it be true that the injected solution was really isotonic? Why or why not?$$\begin{array}{l}{\text { a. False, the solution was hypertonic. }} \\ {\text { b. False, the solution was osmotic. }} \\ {\text { c. False, the solution was hypotonic. }} \\ {\text { d. True, the solution was isotonic. }}\end{array}$$
