Rank the elements carbon, phosphorus, calcium, and iodine in order of decreasing number of energy shells/levels
A. CPCaI
B. ICaPC
C. IPCCa
Answer: B
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In meiotic non-disjunction, meiotic products can be n+1, n-1, or n depending on when non-disjunction occurs
For the n+1 product can you tell if non-disjunction occurred in meiosis I or II if the non-disjunction happened to an autosome? What about a sex chromosome? A. No; yes B. No; no C. Yes; yes D. Yes; no
If your mother is heterozygous for Huntington’s disease, which is caused by a dominant allele, the odds that you will
inherit the disorder from her are ____.
a. 1/4 b. 1/2 c. 3/4 d. 1 e. 0
Which of the following does NOT apply to the sex chromosomes X and Y?
a. They are included in an organism's karyotype. b. They look different and carry different genes. c. They are autosomes. d. The nonhomologous pair is thought to have evolved from a homologous pair 250 million years ago.
In any DNA molecule, the number of guanine bases is:
a. equal to the total number of cytosine and adenine bases. b. always equal to the number of thymine bases. c. sometimes equal to the number of thymine bases and sometimes equal to the number of adenine bases. d. always equal to the number of adenine bases. e. always equal to the number of cytosine bases.