Chapter 2 Flashcards
If a child receives an allele for blue-eyes & an allele for brown eyes, then the child is
･ﾟ ✧ . ˖˳a) heterozygous for that trait
･ﾟ ✧ . ˖˳b) homozygous for that trait
･ﾟ ✧ . ˖˳c) going to have blue eyes
･ﾟ ✧ . ˖˳d) exhibiting the law of dominance.
･ﾟ ✧ . ˖˳a) heterozygous for that trait.
Tissues are replaced through a process called..
･ﾟ ✧ . ˖˳mitosis
Traits are determined by
pairs of genes
identical twins are also described as
･ﾟ ✧ . ˖˳monozygotic.
In comparison to the average male population, individuals with Klinefelter’s syndrome ____
･ﾟ ✧ . ˖˳produce less testosterone than normal.
People who bear 1 dominant + 1 recessive gene for a trait are
･ﾟ ✧ . ˖˳called “carriers” of the recessive gene.
A zygote that divides into 2 cells that separate results in
･ﾟ ✧ . ˖˳monozygotic twins.
Heredity is defined as
･ﾟ ✧ . ˖˳one’s nature, based on biological transmission of traits & characteristics.
A woman who gives birth to dizygotic twins ____
･ﾟ ✧ . ˖˳has an increased chance of giving birth to twins in future pregnancies.
A human cell contains how many chromosomes?
･ﾟ ✧ . ˖˳46.
Sperm cells carrying the Y chromosome will
･ﾟ ✧ . ˖˳contain less genetic material than those carrying the X chromosomes.
Individuals with down syndrome:
･ﾟ ✧ . ˖˳a) have moderate to severe cognitive impairments
･ﾟ ✧ . ˖˳b) do not typically suffer adjustment problems
･ﾟ ✧ . ˖˳c) have few, if any, physical problems.
･ﾟ ✧ . ˖˳d) have chromosomal damage on the 8th chromosome.
･ﾟ ✧ . ˖˳a) have moderate to severe cognitive impairments.
With amniocentesis, ____
･ﾟ ✧ . ˖˳fluid is tested from the “sac” containing the fetus.
Down’s Syndrome is linked to
･ﾟ ✧ . ˖˳abnormalities of the 21st pair of chromosomes.
Chromosomes contain thousands of segments called what?
･ﾟ ✧ . ˖˳ genes.
