BIO 111 test 3

it was important that Mendel used true-breeding lines of pea plants in his crossing experiments, because

• it increased the fertility of the plants

• it made cross-fertilizing easier

• it ensured the plants were homozygous

• it reduced the generation the generation time of the plants

one of Mendel's most important insights was

• pea plants have many different traits

• cross-pollinating is more efficient than self-pollinating

• growing plants for several generations always produce variation

• heritable elements from each parent stay separate in offspring

for a single gene, a diploid individual can have

• 1 allele

• 2 alleles

• 3 alleles

• 4 alleles

Mendel used a testcross to show

• that a cross-pollination occured

• whether a plant was homozygous or heterozygous

• that a trait was genetically herritable

• what the best way of growing the plants was

muscular dystrophy affects men more than women, because

• men have more muscle mass than women

• men are more likely than women to misuse anabolic steroids

• men have only one X chromosome

• the dystrophin gene responds more to estrogen than testosterone

all the following are parts of a nucleotide, EXCEPT

• nitrogenous base

• phosphate

• amino acid

• 5-carbon sugar

the genome of an organism is

• the complete sequence of its DNA

• all of its genes

• only the genes that are expressed

• its DNA and proteins

the result of DNA replication is

• two all-new double-stranded DNAs

• two double-stranded DNAs, each with an old strand and a new strand

• two double-stranded DNAs, one with two new strands, the other with two old strands

• could be a, b, or c

which of the following is NOT a normal part of DNA replication

• free nucleotides

• ribosome

• DNA polymerase

• template DNA

in a substitution mutation

• a nucleotide pair is removed from DNA

• a nucleotide pair is added to DNA

• a pair of nucleotides is changed to a different pair

• a group of nucleotide pairs is moved to a new location