In an evolutionary context, ________ structures do not currently have a function in present-day organisms
Fill in the blank(s) with correct word
vestigial
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What ensures that the correct amino acid is added during translation?
A) the anticodon of a properly formed aminoacyl tRNA B) the methyl-guanosine cap of a properly modified mRNA C) the poly-A tail of a properly modified mRNA D) the twisting number of a properly supercoiled DNA
Why are most bryophytes less than 10 cm tall?
A. They have underdeveloped stomata. B. They are seedless. C. They lack a cuticle. D. The have conducting cells instead of tracheids. E. They have no H2O transport mechanisms.
Some organisms do not have crossing over, and hold their homologous chromosomes together via
some other mechanism. Even though crossing over leads to genetic diversity, the absence of crossing over in these organisms does not prevent the production of diverse gametes. Why is this?
What will be an ideal response?The form of competition in which growth and reproduction are depressed equally across individuals in a population as the intensity of competition increases is called
A) scramble competition. B) contest competition. C) exploitation competition. D) interference competition.