Use a Punnett square to demonstrate a cross between two of the F1 offspring. What are the phenotypes and ratios that occur?
What will be an ideal response?
6 blue rose (B/b R/-): 3 black rose (B/B R/-): 3 white rose (b/b R/-): 2 blue single (B/b r/r): 1 black single (B/B r/r): 1 white single (b/b r/r)
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When molecules diffuse, they move ________
a. down their own concentration gradient unless there are other molecules also diffusing in the vicinity b. up their own concentration gradient unless there are other molecules also diffusing in the vicinity c. up their own concentration gradient without regard to the gradients of other molecules d. down their own concentration gradient without regard to the gradients of other molecules
Which of the following statements is INCORRECT about triploid species?
A) Triploid species have an extra copy of one chromosome. B) Triploid species have three complete sets of chromosomes. C) Triploid species are usually infertile. D) Triploid species are an example of a polyploidy organism. E) All of these choices are correct.
When a person has laryngitis, he or she cannot speak. What must happen to permit normal speech?
A) Inflammation in the bronchioles has to go down before enough air can enter the lungs. B) The swelling of the vocal cords must decrease so they can vibrate normally. C) Inflammation in the trachea has to go down before enough air can enter the lungs. D) The epiglottis must cover the glottis.
Finger-like projections that assist in gathering released eggs into the oviducts after ovulation are called the __________
Fill in the blank(s) with the appropriate word(s)