PLTW PBS-3.1, 3.2 & 3.3 With Complete
Solutions 100% Verified
Allele - ANSWER An alternative form of a gene.
Autosome - ANSWER Any chromosome that is not a sex chromosome
Chromosome - ANSWER Bodies within the nucleus made of DNA and proteins called the
histones
Dominant Trait - ANSWER A genetic trait expressed in a person who has only one type of
the gene associated with the trait.
Gene - ANSWER A segment of DNA on a chromosome that codes for a specific trait
Genetic Material - ANSWER Molecules responsible for heredity and variation of
organisms.
Genotype - ANSWER Genetic makeup of an organism
Heredity - ANSWER the biological process whereby genetic factors are transmitted
from one generation to the next
Homologous Chromosomes - ANSWER Chromosomes that have the same sequence of
genes, that have the same structure, and that pair during meiosis.
Karyotype - ANSWER A display of the chromosome pairs of a cell arranged by size and
shape.
, Meiosis - ANSWER Cell division that produces reproductive cells in sexually reproducing
organisms
Mitosis - ANSWER A process of nuclear division in eukaryotic cells conventionally
divided into five stages: prophase, prometaphase, metaphase, anaphase, and
telophase. Mitosis conserves chromosome number by equally distributing replicated
chromosomes to each of the daughter nuclei.
Mutation - ANSWER A rare change in the DNA of a gene, ultimately creating genetic
diversity.
Pedigree - ANSWER A structure that outlines the relationship of a particular genetic trait
as it occurs through several generations of family.
Phenotype - ANSWER The physical appearance of an organism, or visible traits.
Recessive Trait - ANSWER A condition that only occurs when an individual has inherited
two copies of a mutant gene-one from each parent.
Sex Chromosomes - ANSWER One of the pair of chromosomes that determines the
gender of a person.
Anemia - ANSWER A condition of the blood in which the blood is deficient in red blood
cells, in hemoglobin, or in total volume.
Blood Plasma - ANSWER A fluid portion of the blood that contains 90 percent water and
10 percent other. Contains the matrix of blood: H2O, ions, urea, NH3, proteins, and
other organic/inorganic compounds.
Erythrocytes (Red Blood Cells) - ANSWER carry oxygen via the transport protein
hemoglobin
Solutions 100% Verified
Allele - ANSWER An alternative form of a gene.
Autosome - ANSWER Any chromosome that is not a sex chromosome
Chromosome - ANSWER Bodies within the nucleus made of DNA and proteins called the
histones
Dominant Trait - ANSWER A genetic trait expressed in a person who has only one type of
the gene associated with the trait.
Gene - ANSWER A segment of DNA on a chromosome that codes for a specific trait
Genetic Material - ANSWER Molecules responsible for heredity and variation of
organisms.
Genotype - ANSWER Genetic makeup of an organism
Heredity - ANSWER the biological process whereby genetic factors are transmitted
from one generation to the next
Homologous Chromosomes - ANSWER Chromosomes that have the same sequence of
genes, that have the same structure, and that pair during meiosis.
Karyotype - ANSWER A display of the chromosome pairs of a cell arranged by size and
shape.
, Meiosis - ANSWER Cell division that produces reproductive cells in sexually reproducing
organisms
Mitosis - ANSWER A process of nuclear division in eukaryotic cells conventionally
divided into five stages: prophase, prometaphase, metaphase, anaphase, and
telophase. Mitosis conserves chromosome number by equally distributing replicated
chromosomes to each of the daughter nuclei.
Mutation - ANSWER A rare change in the DNA of a gene, ultimately creating genetic
diversity.
Pedigree - ANSWER A structure that outlines the relationship of a particular genetic trait
as it occurs through several generations of family.
Phenotype - ANSWER The physical appearance of an organism, or visible traits.
Recessive Trait - ANSWER A condition that only occurs when an individual has inherited
two copies of a mutant gene-one from each parent.
Sex Chromosomes - ANSWER One of the pair of chromosomes that determines the
gender of a person.
Anemia - ANSWER A condition of the blood in which the blood is deficient in red blood
cells, in hemoglobin, or in total volume.
Blood Plasma - ANSWER A fluid portion of the blood that contains 90 percent water and
10 percent other. Contains the matrix of blood: H2O, ions, urea, NH3, proteins, and
other organic/inorganic compounds.
Erythrocytes (Red Blood Cells) - ANSWER carry oxygen via the transport protein
hemoglobin
