1. a geneticist is studying the karyotype of a person with a normal number of chromosomes. which of the
following would be the correct chromosome configuration?
a. 22 pairs of autosomes and one pair of sex chromosomes
b. 22 autosomes and 1 sex chromosome
c. 22 pairs of alleles and one pair of sex chromosomes
d. 46 pairs of autosomes and one pair of sex chromosomes
e. 46 pairs of alleles and one pair of sex chromosomes

The characteristic of two different types of reactions are shown below. reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of and element. which statement is true about the atoms of the elements that participate in the two reactions? a: their identity changes in both reaction a and b. b: their identity changes in reaction a but not b. c: their identity changes in reaction b but not a. d: their identity remains the same.

Predict the reactants of this chemical reaction. that is, fill in the left side of the chemical equation. be sure the equation you submit is balanced. (you can edit both sides of the equation to balance it, if you need to.) note: you are writing the molecular, and not the net ionic equation. > cacl2(aq) + h20(l)

Afusion reaction takes place between carbon and another element. neutrons are released, and a different element is formed. the different element is a) lighter than helium.b)heavier than helium.c)the same weight as helium.d)dependent on the element that reacted with carbon.