Would meiosis, when it was discovered, have been understood without Mendel's work? Explain why
or why not, using Mendel's three key findings about inheritance.
What will be an ideal response?
No, meiosis would not have been understood without Mendel's work to explain why the chromosome
movements and interactions were taking place. Mendel discovered the fundamental patterns of
inheritance, such as an individual having two alleles for a single trait, each derived from a parent. This
was followed by the patterns of dominance which would explain why phenotypes could change over
generations even though individuals were closely related to each other. And his principle of
segregation explained why meiosis, and not mitosis, was necessary for the formation of gametes. The
importance of Mendel's work cannot be overstated as it is the foundation upon which all of modern
genetics rests.
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Viral infections are not considered a risk factor for autosomal trisomy because a virus cannot affect human chromosome arrangement
a. True b. False Indicate whether the statement is true or false
Four of the five answers listed below are
degradation processes for carbon compounds. Select the EXCEPTION.
a. Calvin-Benson cycle b. Krebs cycle c. fermentation d. respiration e. glycolysis
In the Watson-Crick model of DNA structure, the polynucleotide chains are
A. of unequal length. B. both oriented in the same direction. C. arranged with the bases on the outside. D. built with the nucleotides as the backbone. E. oriented in opposite directions.
When mitochondria pass electrons donated by NADH through the electron transport chain to molecular oxygen, a theoretical maximum of ________ molecules of ATP can be made per oxygen molecule reduced.
Fill in the blank(s) with the appropriate word(s).