The simplest unit of matter that still retains the properties of an element is a(n) _______.
A. atom
B. compound
C. cell
D. electron
A. atom
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A gamete having more than one complete set of paired chromosomes
A. is polyploid. B. will undergo mitosis. C. cannot be produced by meiosis. D. is not yet through meiosis. E. cannot participate in fertilization.
The relationship between a gene and a messenger RNA is that ________
A) mRNAs are made from genes B) genes are structurally identical to mRNAs C) mRNAs make proteins, which then code for genes D) mRNA is directly responsible for making Okazaki fragments E) genes are made from mRNAs
What describes marsupial embryos?
A. They are nourished by the placenta. B. They hatch from an externally laid egg. C. They hatch from an internal egg. D. They are born fully developed. E. They are born highly underdeveloped.
Which of the following bacteria is gram-positive?
A) Pseudomonas B) Salmonella C) Streptococcus D) Bacteroides E) Rickettsia