If shape and color of radishes are due to
incompletely dominant genes, crossing two dihybrid
heterozygotes will produce how many different
phenotypes?
a. 2
b. 3
c. 4
d. 5
e. 9
Answer: e
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When two or more genes from the same genome have nucleotide sequences so alike that they most probably arose from gene duplication those genes are called ________.
A. homologs B. duologs C. orthologs D. paralogs
The table shows the distribution of traits (A-E) in six extant species (1-6). A "0" indicates the ancestral condition, while a "1" indicates the derived condition. Based on this data, which pair of species diverged most recently?
A. 1 and 4
B. 2 and 3
C. 2 and 4
D. 6 and 4
E. 6 and 5
Clarify Question
· What is the key concept addressed by the question?
· What type of thinking is required?
· What key words does the question contain and what do they mean?
Gather Content
· What do you already know about cladistics?
Consider Possibilities
· What other information is related to the question? Which information is most useful?
Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer?
Reflect on Process
· Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
The major carbon reservoir in marine ecosystems is ____
a. cell respiration b. in marine sediments c. volcanic eruptions d. photosynthesis e. ocean runoff
"Gain of function" mutations are generally dominant because one copy in a diploid organism is sufficient to alter the normal phenotype
Indicate whether the statement is true or false