SBI3U – Genetics Question and
answers verified to pass 2025
Allele - correct answer a Specific form of a gene
Asexual Reproduction - correct answer The production of offspring from a
single parent; the genetic makeup of the offspring is identical to that of the
parent
Autosomal Inheritance - correct answer inheritance of alleles located on
autosomal (non-sex) chromosomes.
autosomes - correct answer non-sex chromosomes
cell cycle - correct answer a continuous sequence of growth and division in
cells
chromatid - correct answer one of two 'sisters'; makes up half of a
chromosome
Chromatin - correct answer The tangled strands of DNA and protein within a
eukaryotic nucleus
chromosome - correct answer thread-like structures made up of DNA located
in the nucleus of a cell
Cloning - correct answer The process of producing one individual that is
genetically identical to another, using a single cell or tissue
, Codominance - correct answer a situation where both alleles are expressed
fully to produce offspring with a third, mixed phenotype. (e.g., spotted)
Complete Dominance - correct answer a situation where an allele will
determine the phenotype, regardless of the presence of another allele
crossing over - correct answer the exchange of chromosome segments
between homologous pairs during synapsis
cytokinesis - correct answer the cytoplasm is divided to form 2 distinct cells
with one nucleus in each
daughter cell - correct answer the genetically identical cell produced through
mitosis
Dihybrid Cross - correct answer a cross that involves two genes, each
consisting of heterozygous alleles.
diploid cell - correct answer contain 2N chromosomes | 46 in humans
DNA - correct answer Deoxyribonucleic acid; present in nearly all living cells,
main constituent of chromosomes, the carrier of genetic information
double helix - correct answer the shape of DNA; two spirals
Trisomy 21 - correct answer Downs Syndrome | a genetic disorder caused by
nondisjunction during meiosis
answers verified to pass 2025
Allele - correct answer a Specific form of a gene
Asexual Reproduction - correct answer The production of offspring from a
single parent; the genetic makeup of the offspring is identical to that of the
parent
Autosomal Inheritance - correct answer inheritance of alleles located on
autosomal (non-sex) chromosomes.
autosomes - correct answer non-sex chromosomes
cell cycle - correct answer a continuous sequence of growth and division in
cells
chromatid - correct answer one of two 'sisters'; makes up half of a
chromosome
Chromatin - correct answer The tangled strands of DNA and protein within a
eukaryotic nucleus
chromosome - correct answer thread-like structures made up of DNA located
in the nucleus of a cell
Cloning - correct answer The process of producing one individual that is
genetically identical to another, using a single cell or tissue
, Codominance - correct answer a situation where both alleles are expressed
fully to produce offspring with a third, mixed phenotype. (e.g., spotted)
Complete Dominance - correct answer a situation where an allele will
determine the phenotype, regardless of the presence of another allele
crossing over - correct answer the exchange of chromosome segments
between homologous pairs during synapsis
cytokinesis - correct answer the cytoplasm is divided to form 2 distinct cells
with one nucleus in each
daughter cell - correct answer the genetically identical cell produced through
mitosis
Dihybrid Cross - correct answer a cross that involves two genes, each
consisting of heterozygous alleles.
diploid cell - correct answer contain 2N chromosomes | 46 in humans
DNA - correct answer Deoxyribonucleic acid; present in nearly all living cells,
main constituent of chromosomes, the carrier of genetic information
double helix - correct answer the shape of DNA; two spirals
Trisomy 21 - correct answer Downs Syndrome | a genetic disorder caused by
nondisjunction during meiosis
