Imagine that you are performing a cross involving seed texture in garden pea plants. You cross true-breeding round and wrinkled parents to obtain F 1 offspring. Which of the following experimental results in terms of numbers of plants are closest to what you expect in the F 2 progeny?

a) 810 round seeds
b) 405:395 round seeds:wrinkled seeds
c) 610:190 round seeds:wrinkled seeds
d) 810 wrinkled seeds


Ans: c) 610:190 round seeds:wrinkled seeds

Biology & Microbiology

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A genetic abnormality that may result in sterile

males with some mental impairment or breast enlargement is a. XXY. b. XYY. c. Turner syndrome. d. Down syndrome. e. none of these.

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The correct sequence of the stages of viral replication is:

a. Attachment - Synthesis - Penetration - Assembly - Release b. Penetration - Attachment - Assembly - Synthesis - Release c. Penetration - Attachment - Synthesis - Release - Assembly d. Attachment - Penetration - Assembly - Synthesis - Release e. Attachment - Penetration - Synthesis - Assembly - Release

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A retrovirus uses reverse transcriptase to make a DNA copy of RNA

Indicate whether the statement is true or false

Biology & Microbiology