Johann Gregor Mendel’s work in genetics focused on traits that exhibit discontinuous variation. What kind of traits are these?
a. traits that are inherited in distinct patterns easily distinguishable among phenotypes
b. traits that are controlled by many genes that each participate in subtle ways to produce a range of phenotypes
c. traits that are controlled by individual genes that are “tempered” by neighboring genes to produce a range of phenotypes
d. traits that are located physically close to each other on the same chromosome
a. traits that are inherited in distinct patterns easily distinguishable among phenotypes
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Which change in a gene's DNA sequence would have the least effect on the eventual amino acid sequence produced from it?
A. Deletion of two consecutive nucleotides B. Addition of one nucleotide C. Addition/deletion of three consecutive nucleotides D. Substitution of one nucleotide AND addition of 1 nucleotide
The sporophyte generation of kelp is dominant and larger than the gametophyte
Indicate whether the statement is true or false
The carrying capacity of an environment is
increased by
a. pollution. b. predation. c. disease. d. population growth. e. none of these
The G2 cell cycle checkpoint detects
a. the binding of the MCM proteins to origins of replication. b. chromosome misalignment. c. unreplicated or damaged DNA. d. levels of p53.