Chapter 5 Test Flashcards
which combination of chromosomes is a male human?
XY
which is an example of the benefits of genetic engineering?
creating human insulin to help people with diabetes
what was the purpose of the human genome project
to identify the DNA sequence of every gene in the human genome
what is a genome?
all of the DNA in an organism
sex linked genes are on what chromosomes?
x and y
a carrier is a person who
has one recessive and one dominant allele for a trait
why does height have such a wide variety of phenotypes?
height is controlled by at least four genes
what’s a pedigree
a chart that tracks family members traits
what causes the body to create abnormally thick mucus
cystic fibrosis
what is a Karotype
picture of all chromosomes in a persons cell
potato is mixed with a potato that tastes good and resisted disease. what is this called?
hybridization
hemophilia is caused by
recessive allele on X chromosome
Down syndrome occurs when
chromosome fail to separate during meiosis
what is abnormally shaped blood cells?
sickle cell
an egg that is fertizlized by sperm cell with what kind of chromosome will result in a female
X chromosome
who has unnormally low levels of blood oxygen
sickle cell disease is
pedigree: circles =
squares =
circles female
square male
which individuals have trait that is traced by pedigree
f and j
which individuals are carriers of the trait that is traced by the pedigree
a, c, n, o
a plant breeder clones a plant with beautiful flowers. define cloning and explain how the cloned offspring will compare to the plant
cloning is creating an exact genetic replica of the organism being replicated the offspring will be exactly the same
is it possible for a son to inherit an allele on an X chromosome from his father? why
it’s not possible for a son to inherit an allele on an X chromosome from his father because males only have one X chromosome which always comes from the mother
human eyes come in a variety of colors ranging from light blue to brown. explain why eye color is not likely to be controlled by a single gene
traits that show a large number of phenotypes are usually controlled by many genes l. with multiple genes and two or more alleles for each gene there are many different combinations of alleles and phenotypes
Which trait is controlled by multiple alleles?
blood type
