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BIO 150 LECTURE Chapter 14 Question and answers already passed 2024
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BIO 150 LECTURE Chapter 14 Question and answers already passed 2024
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BIO 150 LECTURE Chapter 14 Questionand answers already passed (13 pgs)
Which of the following chromosomal alterations would you expect to have the
most drastic consequences?
A. inversion B. duplication C. translocation D. deletion E. a and b are equally
the most serious - correct answer ✔deletion
The most common lethal genetic disease in the United States is - correct
answer ✔cystic fibrosis
There are various procedures that can be used to detect genetic disorders
before birth. Among the tests discussed in this chapter, ____ is the least
invasive, while ____ carries the highest risk. - correct answer ✔ultrasound
imaging . . . chorionic villi sampling
Michelle and Keith are apparently normal, but their daughter was born with
alkaptonuria, an inherited metabolic disorder. If alkaptonuria is like most
human hereditary disorders, the probability of their next child being born with
alkaptonuria is - correct answer ✔1/4.
Several inherited disorders are much more common in close-knit religious
communities, such as the Amish, than in the general population. This is at
least partly due to the fact that - correct answer ✔people in such
communities are more likely to marry relatives.
A heritable feature is a ______ and may have two or more variants
called______ - correct answer ✔character... traits
In a cross between two heterozygotes (Aa), the next generation will be
, A. in the ratio 1:3 heterozygous to homozygous
B. all heterozygous
C. in the ratio 1:1 homozygous to heterozygous
D. all homozygous
E. in the ratio 1:3 homozygous to heterozygous - correct answer ✔in the
ratio 1:1 homozygous to heterozygous
You set up an experiment in which you breed two populations of true-breeding
pea plants. The first true-breeding population has yellow round seeds and the
second has green wrinkled seeds. All of the F1 plants yield yellow round
seeds. When you self fertilize the F1 the F2 generation yields a mixture of
yellow round, yellow wrinkled, green round and green wrinkled seeds. What
does this tell you about the alleles for seed color and shape ? - correct
answer ✔the two alleles for each character segregate during gamete
production
In a dihybrid cross, the expected proportion of offspring (F2 generation)
showing both recessive traits is - correct answer ✔1/16
In a cross AaBbCc x AaBbCc, what is the probability of producing the
genotype AABBCC? - correct answer ✔1/64
You cross a true-breeding red-flowered snapdragon with a true-breeding
white-flowered one. All of the F1 are pink. What does this say about the
parent traits? - correct answer ✔red and white show incomplete dominance
While on a field trip in the jungle you find a new species of mouse. You catch
a pair and take them back to the lab. In mice, black coat color, B, is dominant
to brown b, yet the female mouse gives rise to a large litter in which 9 of the
offspring were black, 3 were brown and 4 were white. You conclude that -
correct answer ✔there must be an epistatic interaction influencing coat color
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