Genetics Exam Questions & answers rated A+ 2025/2026

Genetics Exam Questions & answers
rated A+ 2025/2026

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