Which organelle is round and derives its name from the Latin word for "kernel"?
A) Golgi complex
B) mitochondrion
C) chloroplast
D) nucleus
E) lysosome
D) nucleus
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Which of the following statements about independent assortment and segregation is correct?
A) The law of independent assortment requires describing two or more genes relative to one another. B) The law of segregation requires describing two or more genes relative to one another. C) The law of segregation requires having two or more generations to describe. D) The law of independent assortment is accounted for by observations of prophase I. E) The law of segregation is accounted for by anaphase of mitosis.
Which of the following statements most accurately describes the inference that can be made regarding the possible functional significance of FoxP2 in the evolution of human language?
A. FoxP2 is a highly conserved transcription fact that is a "language gene". Changes in the function of this gene in the human lineage were the key event that allowed language to evolve. B. FoxP2 is a developmental gene with pleiotropic effects. Because this gene is highly conserved among a group organisms that are capable of acoustic communication it must be involved in the evolution of human language. C. FoxP2 is a highly conserved transcription factor. Because songbirds whose FoxP2 has been knocked out are less capable of learning new songs, this gene is likely involved in the evolution of human language. D. FoxP2 is a developmental gene that affects acoustic communication in a range of animal species. Because the human gene shows an elevated rate of non-synonymous to synonymous mutations in the human lineage, changes to the function of this gene in the humans may have contributed to the evolution of language.
Rosalind Franklin used which techniques to
determine many of the physical characteristics of DNA?
a. scanning electron microscopy b. transmission electron microscopy c. recombinant DNA techniques d. X-ray crystallography e. DNA profiling
Why would a tall woman be at less risk of osteoporosis than a short woman, yet both would be at higher risk than a man?
What will be an ideal response?