Question :
MULTIPLE CHOICE
1.How many chromosomes found in the organism that results : 1245530
MULTIPLE CHOICE
1.How many chromosomes are found in the organism that results from the union of a sperm cell and an egg cell?
a.22c.44
b.23d.46
2.Kathleen and Alphonse are expecting their first child, and are having a pleasant conversation about the sex of the baby. Kathleen says, “Well, as long as all of the chromosomes are X, we’ll be having a girl!” Which of the following would be the best answer for Alphonse to give?
a.“That isn’t exactly right, since it is an XY chromosomal pattern that produces a female baby.”
b.“Actually, it is only one pair of chromosomes that determines the sex of the baby.”
c.“It is not the chromosomes, but the genes that make up the chromosomes that determine whether we’ll have a son or a daughter.”
d.“Since we are only in the second month of the pregnancy, we still have six months to go before the sex of the baby will be determined by the 15th and 16th pairs of chromosomes.”
3.When looking through a microscope at an entire set of human male chromosomes, how would you be able to differentiate an autosome pair from a sex chromosome pair?
a.The sex chromosome pair would be about 10 times larger than the autosome pair.
b.The circular-shaped cells would be the autosomes and the square shapes would be the sex chromosomes.
c.There would be three cells in the autosome “pair” and two cells in the sex chromosome “pair.”
d.The shape of the sex chromosomes would differ, whereas each autosome pair would look identical.
4.How many of the pairs of chromosomes in normal human cells are considered autosomes?
a.1c.22
b.12d.46
5.Which of the following is NOT one of the chemical compounds that makes up a strand of DNA?
a.depraninec.thymine
b.adenined.cytocine
6.How is it that DNA “knows” which specific amino acids, proteins, or enzymes to create?
a.The number of chromosomes that makes up the DNA strand determines this outcome.
b.The length of the DNA strand, determined by the number of genes on the strand, produces the specific outcome.
c.The combination of XX and XY chromosomes in the DNA strand determines this outcome.
d.The order in which the four nucleotide bases occur in the DNA strand results in the specific production outcomes.
7.Kimberley is having a discussion with her friend Aasta about the genetic determinants of development. They cannot come to an agreement on what the functional units of heredity are. If they asked you to help them figure this out, what would you say?
a.The most functional units of heredity are chromosomes.
b.The most functional units of heredity are genes.
c.The most functional units of heredity are ribosomes.
d.The most functional units of heredity are nucleotides.
8.When Chester is conceived by his parents, he has the genetic instructions to grow up to be 6’1’’ tall. During his childhood, however, he develops a digestive illness that significantly limits the amount of food he can eat, and he regularly fails to get enough vitamins in his diet. As a result, he grows up to be 5’11’’ tall. In this example, a height of 6’1’’ is Chester’s ________ and a height of 5’11’’ is Chester’s ________.
a.phenotype; genotypec.nucleotype; chromotype
b.chromotype; nucleotyped.genotype; phenotype
9.Genotype is to phenotype as
a.homozygous is to heterozygous.
b.nurture is to nature.
c.DNA is to RNA.
d.genetic pattern is to physical, behavioral, and psychological features.
10.Kendrie suffers from sickle cell anemia. She is not just a carrier of the illness, but she actually has the disease itself. Which of the following best describes Kendrie’s red blood cell alleles?
a.heterozygousc.homozygous
b.genotypicald.phenotypical
