BIOLOGY  VOL. II
BIOLOGY VOL. II
16th Edition
ISBN: 9781308795317
Author: Raven
Publisher: Mcgraw-Hill/Create
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Chapter 1, Problem 3U

A hypothesis in biology is best described as

a. a possible explanation of an observation.

b. an observation that supports a theory.

c. a general principle that explains some aspect of life.

d. an unchanging statement that correctly predicts some aspect of life.

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In certain parts of Africa where malaria is prevalent there is an apparent advantage to being heterozygous for the recessive allele that causes sickle-cell anemia.  Suppose a couple, both heterozygous for this allele, plans to have four children.  What is the probability that all four will be heterozygous for the sickle-cell allele (assuming that none are from multiple births)? Explain how they can determine this using a Mendelian cross.
Don't give AI generated solution    Fill in the blanks to complete the process of cellular respiration ? give typing explanation
Question 2. same chromosome. For all parts of this question, the E and G genes are 8 map units apart on the a) An EG/eg individual is test crossed. What proportion of the progeny will exhibit 1 dominant trait and 1 recessive trait? b) An EG/eg individual is crossed with an Eg/eG individual. What proportion of the progeny will be homozygous recessive for both traits? c) An EG/eg individual is crossed with an Eg/eG individual. What proportion of the progeny will be heterozygous for both genes?
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