Chapter 12: Q. 5 (page 326)
Mendel performed hybridizations by transferring pollen from the _______ of the male plant to the female ova.
a. anther
b. pistil
c. stigma
d. seed
The correct answer is option a
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Which is one of the seven characteristics that Mendel observed in pea plants?
a. flower size
b. seed texture
c. leaf shape
d. stem color
A scientist pollinates a true-breeding pea plant with violet, terminal flowers with pollen from a true-breeding pea plant with white, axial flowers. Which of the following observations would most accurately describe the F2 generation?
a. 75% violet flowers; 75% terminal flowers
b. 75% white flowers in terminal position
c. 75% violet flowers; 75% axial flowers
d. 75% violet flowers in an axial position
Why is it more efficient to perform a test cross with a homozygous recessive donor than a homozygous dominant donor? How could the same information still be found with a homozygous dominant donor?
Imagine you are performing a cross involving seed color in garden pea plants. What F1offspring would you expect if you cross true-breeding parents with green seeds and yellow seeds? Yellow seed color is dominant over the green.
a. 100 percent yellow-green seeds
b. 100 percent yellow seeds
c. 50 percent yellow, 50 percent green seeds
d. 25 percent green, 75 percent yellow seeds
Which of the following situations does not follow the Law of Independent Assortment?
a. A blind man and a brunette woman produce three offspring over time, all of who have blind hair.
b. A white cow crossed with a brown bull produces roan cattle.
c. Mating a hog with a sow produces six female piglets.
d. Men are more likely to experience hemophilia than women.
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