BIO 101 EXAM 2 FINAL PAPER 2026
COMPREHENSIVE QUESTIONS AND
ACCURATE SOLUTIONS
◉ Homologous chromosome
Answer: Have the same genes but different alleles
- come from each parent
◉ Sister chromatids
Answer: The final division. They are exactly the same and attached
at the centromere.
◉ Gene
Answer: The physical and functional unit of heredity; a sequence of
DNA that codes for a specific peptide or RNA molecule.
◉ Allele
Answer: one of two or more variations of a gene that determines a
particular trait for a characteristic.
◉ Gamete
, Answer: A haploid cell such as an egg or sperm. Gametes unite
during sexual reproduction to produce a diploid zygote.
◉ Dominant
Answer: describes a trait that masks the expression of another trait
when both versions of the gene are present in an individual.
◉ Recessive
Answer: Describes a trait that is covered over, or dominated, by
another form of that trait and seems to disappear. Only appears
when both are recessive.
◉ Homozygous
Answer: Having two identical alleles for a particular gene.
◉ Heterozygous
Answer: Having two different alleles for a particular gene
◉ Genotype
Answer: The underlying genetic makeup of an organism. Consisting
of both physically visible and non-expressed alleles.
◉ Phenotype
COMPREHENSIVE QUESTIONS AND
ACCURATE SOLUTIONS
◉ Homologous chromosome
Answer: Have the same genes but different alleles
- come from each parent
◉ Sister chromatids
Answer: The final division. They are exactly the same and attached
at the centromere.
◉ Gene
Answer: The physical and functional unit of heredity; a sequence of
DNA that codes for a specific peptide or RNA molecule.
◉ Allele
Answer: one of two or more variations of a gene that determines a
particular trait for a characteristic.
◉ Gamete
, Answer: A haploid cell such as an egg or sperm. Gametes unite
during sexual reproduction to produce a diploid zygote.
◉ Dominant
Answer: describes a trait that masks the expression of another trait
when both versions of the gene are present in an individual.
◉ Recessive
Answer: Describes a trait that is covered over, or dominated, by
another form of that trait and seems to disappear. Only appears
when both are recessive.
◉ Homozygous
Answer: Having two identical alleles for a particular gene.
◉ Heterozygous
Answer: Having two different alleles for a particular gene
◉ Genotype
Answer: The underlying genetic makeup of an organism. Consisting
of both physically visible and non-expressed alleles.
◉ Phenotype
