Modern Genetics Question Preview (ID: 51244)


An Overview Of Modern Genetics. TEACHERS: click here for quick copy question ID numbers.

Multiple alleles are:
a) Alleles that have been genetically modified
b) Genes that are carried on the sex chromosomes
c) Genes that have more than two alleles involved
d) What happens after meiosis

When many genes work together to control a trait, there are:
a) A small selection of phenotypes
b) A wide range of phenotypes
c) No phenotypes
d) One phenotype on one side of the body, a different phenotype on the other side of the body

Men always have this combination of sex chromosome
a) XX
b) XY
c) YY
d) XZ

When a person inherits an abnormal condition through genes or chromosomes, that condition is called a
a) clone
b) genetic disorder
c) karyotype
d) genetic array

When geneticists look at inheritance patterns in a specific family, they use a
a) Pedigree
b) Punnett square
c) Genome
d) Ancestry schematic

In a pedigree, what does a square represent?
a) Male
b) Female
c) Carrier
d) Someone with the condition

A special type of picture of all of the chromosomes in a cell is called
a) DNA fingerprint
b) clone
c) Karyotype
d) Caricature

In this method, organisms with desired traits are specifically chosen to be the parents for the next generation.
a) Selective breeding
b) Cloning
c) Genetic Engineering
d) Gene Therapy

The method of treating certain genetic disorders by injecting corrected copies of a gene directly into the patient is called
a) Cloning
b) Gene therapy
c) Selective breeding
d) Biomedical research

What is the main goal of the Human Genome Project?
a) To find and treat genetic disorders
b) To create technology to insert human genes into bacteria
c) To identify the DNA sequence of every human gene
d) To map out the neural pathways in the brain

All human females have a genetic makeup of
a) XX
b) XY
c) YY
d) XZ

What is a phenotype?
a) A picture of the genes
b) When multiple alleles are needed to express a trait
c) The genetic makeup
d) The physical characteristics shown

What is a genetic counselor?
a) A person who makes decisions about selective breeding
b) A person who determines if gene therapy is needed
c) A person who maps out the human genome
d) A person who advises a couple about their chances of having a child with a genetic disorder

What is a clone?
a) A mutation
b) An organism that is genetic identical to the organism it was produced from
c) An android developed to help with genetic disorders
d) A selective breeding technique used to eliminate genetic flaws

What is a genome?
a) All the DNA in one cell of an organism
b) A genetic cross between two similar organisms
c) A cross between 2 genetic pools
d) A map of the neural pathways in the brain

How are sex cells different from other cells?
a) The have twice as many chromosomes
b) The have only genes that determine sex and no other genetic information
c) They have half of the number of chromosomes
d) They die during meiosis

What effect could being malnourished have any on a child?
a) They might grow taller than than they otherwise would
b) They might develop lung problems
c) They might develop a genetic disorder
d) They may not grow as tall as they otherwise would

A genetic disorder is caused
a) only by changes in the number of chromosomes
b) only by a mutation in the chromosome
c) only by a translation error
d) by a number of factors, but is passed from parent to offspring

If red hair is recessive: r, which allele combination would have red hair?
a) rr
b) RR
c) Rr
d) rR

What is a sex linked trait?
a) A trait that makes someone male or female
b) A gene that is located on the sex chromosome, either the X or the Y
c) Inheritance of dominant alleles
d) What causes preferences

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