Genetics Exam Questions and
answers graded A+
The link between chromosomes and heredity was demonstrated using ______, and this occurred
______ DNA was identified as the genetic material. - ANS✅✅Drosophila; before
When a gene is expressed, its DNA sequence is copied into ______, and sometimes translated into
________. - ANS✅✅RNA; protein
The basic molecular structure of a gene includes: - ANS✅✅a promoter, a transcribed region, and a
terminator
Which of the following is not true about chromosomes and genes?
a) each chromosome carries many genes
b)two homologous chromosomes will carry different genes
c)the lactase gene will be found at the same location on chromosome 2 in every cell in your body
d)species with more chromosomes always have more genes - ANS✅✅b)two homologous
chromosomes will carry different genes
d)species with more chromosomes always have more genes
The lactase persistence allele: - ANS✅✅affects expression of the LCT gene in humans
What makes two genes different from each other? - ANS✅✅A) they have different DNA sequences
B) they are found at different chromosomal locations (loci) C) they assort independently during
meiosis
D) they may be expressed in different cell types
If an individual carries two identical copies (alleles) of the same gene, the individual is said to be
________ . - ANS✅✅homozygous
A single diploid individual can carry, at most, ________ different alleles of a single gene. -
ANS✅✅two
answers graded A+
The link between chromosomes and heredity was demonstrated using ______, and this occurred
______ DNA was identified as the genetic material. - ANS✅✅Drosophila; before
When a gene is expressed, its DNA sequence is copied into ______, and sometimes translated into
________. - ANS✅✅RNA; protein
The basic molecular structure of a gene includes: - ANS✅✅a promoter, a transcribed region, and a
terminator
Which of the following is not true about chromosomes and genes?
a) each chromosome carries many genes
b)two homologous chromosomes will carry different genes
c)the lactase gene will be found at the same location on chromosome 2 in every cell in your body
d)species with more chromosomes always have more genes - ANS✅✅b)two homologous
chromosomes will carry different genes
d)species with more chromosomes always have more genes
The lactase persistence allele: - ANS✅✅affects expression of the LCT gene in humans
What makes two genes different from each other? - ANS✅✅A) they have different DNA sequences
B) they are found at different chromosomal locations (loci) C) they assort independently during
meiosis
D) they may be expressed in different cell types
If an individual carries two identical copies (alleles) of the same gene, the individual is said to be
________ . - ANS✅✅homozygous
A single diploid individual can carry, at most, ________ different alleles of a single gene. -
ANS✅✅two
