BIOLOGY 101 EXAM 4 2026 BIODIVERSITY
AND CONSERVATION BIOLOGY MODULE
QUESTIONS SOLUTIONS STRUCTURED
SCRIPT
◉ How is all of your genetic information stored?
Answer: homologous chromosomes
◉ How many copies of each gene do you have?
Answer: 2 (1 from mom, 1 from dad)
◉ Homologous chromosomes have the same genes, but can have
different ________.
Answer: alleles
◉ allele
Answer: different version of the same gene
◉ Allele abbreviations
Answer: single letter used to describe a trait
,◉ Dominant alleles
Answer: only need one copy to show trait, capital letter
◉ Recessive alleles
Answer: you need 2 copies to show trait, lower case letter
◉ Fr
Answer: heterozygous dominant
◉ aa
Answer: homozygos recessive
◉ BB
Answer: homozygos dominant
◉ phenotype
Answer: physical appearance (ex: nemo- normal fin, small fin)
◉ genotype
Answer: gene appearance
◉ carrier
, Answer: individual that carries an allele but you don't see you; only
person who is a carrier is a heterozygous since they carry the
recessive allele but you don't see it
◉ A flower that is heterozygous for the purple gene (Purple "P" is
dominant over white "p") has what phenotype and genotype,
respectively?
Answer: Purple; Pp
◉ Gregor Mendel (1822-1884)
Answer: monk; grow different vegetables and studied the traits of
them; discovered simple traits that are inherited; mendelian traits
◉ Characteristics of Mendelian traits
Answer: Controlled by one gene; Only 2 alleles= dominant and
recessive
◉ single-gene traits
Answer: some traits are determined by the instructions an organism
carries on one gene
◉ Law of Segregation
Answer: you've got two copies of each gene but put only one copy in
each sperm or egg
AND CONSERVATION BIOLOGY MODULE
QUESTIONS SOLUTIONS STRUCTURED
SCRIPT
◉ How is all of your genetic information stored?
Answer: homologous chromosomes
◉ How many copies of each gene do you have?
Answer: 2 (1 from mom, 1 from dad)
◉ Homologous chromosomes have the same genes, but can have
different ________.
Answer: alleles
◉ allele
Answer: different version of the same gene
◉ Allele abbreviations
Answer: single letter used to describe a trait
,◉ Dominant alleles
Answer: only need one copy to show trait, capital letter
◉ Recessive alleles
Answer: you need 2 copies to show trait, lower case letter
◉ Fr
Answer: heterozygous dominant
◉ aa
Answer: homozygos recessive
◉ BB
Answer: homozygos dominant
◉ phenotype
Answer: physical appearance (ex: nemo- normal fin, small fin)
◉ genotype
Answer: gene appearance
◉ carrier
, Answer: individual that carries an allele but you don't see you; only
person who is a carrier is a heterozygous since they carry the
recessive allele but you don't see it
◉ A flower that is heterozygous for the purple gene (Purple "P" is
dominant over white "p") has what phenotype and genotype,
respectively?
Answer: Purple; Pp
◉ Gregor Mendel (1822-1884)
Answer: monk; grow different vegetables and studied the traits of
them; discovered simple traits that are inherited; mendelian traits
◉ Characteristics of Mendelian traits
Answer: Controlled by one gene; Only 2 alleles= dominant and
recessive
◉ single-gene traits
Answer: some traits are determined by the instructions an organism
carries on one gene
◉ Law of Segregation
Answer: you've got two copies of each gene but put only one copy in
each sperm or egg
