A pair of sex chromosomes found in a human male is most like
A) a pair of blue jeans.
B) a bride and groom.
C) a knife, fork, and spoon.
D) identical twins.
Answer: B
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Match the following E. coli ribosomal components on the left with the function on the right. Enter only one letter on each line. Not all letters will be used
A. 16S rRNA _____ binds to IF-3 B. 5S rRNA _____ catalyzes the peptidyl transfer reaction C. 30S ribosome _____ specifically recognizes the Shine-Delgarno sequence D. 23S rRNA
Most of the organisms that normally inhabit our skin help defend us against infection
a. True b. False Indicate whether the statement is true or false
The ras proto-oncogene family is a group of related genes that slow or stop the progression of cancer
a. True b. False Indicate whether the statement is true or false
Trait SpeciesABCDE110000211111311111411110511100611000The 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. Which trait is represented by the greatest number of plesiomorphies?
A. A B. B C. C D. D E. E