Bio 133 Exam 1 questions with correct
answers
What is the difference between a gene and an allele? - verified answers; Genes code for
proteins and alleles are variants of genes
______ is for color of a flower and the ______ is purple or white - verified answers; Gene ;
Allele
Alleles are indicated by ________ _________. - verified answers; Different sequences
Normal hemoglobin is ___ and mutant hemoglobin is ___ - verified answers; CTT ; CAT
You receive half of your DNA from each parent but ___________. - verified answers; each cell
in your body contains genes from both parents
What is a difference between DNA and RNA? - verified answers; DNA has the sugar
deoxyribose and RNA has sugar ribose
1. RNA's bases are AUGC and DNA's bases are ATGC
2. DNA and RNA have the same phosphate groups
3. DNA is double stranded typically and RNA is single stranded
DNA contains the instructions for _______. - verified answers; proteins
RNA is the ______ _______ needed for construction of proteins - verified answers;
intermediary vehicle
,Proteins are formed outside of the nucleus in _________. - verified answers; ribosomes.
RNA is needed to _____________ from the DNA to the ribosomes - verified answers;
transport the instuctions
DNA's base pairs are __-__ and __-__ - verified answers; A-T and C-G
RNA's base pairs are __-__ and __-__ - verified answers; A-U and C-G
How many chromosomes do humans have in most of their cells? - verified answers; 46
chromosomes (sperm 23 + egg 23)
How many chromosomes do humans have in reproductive cells? - verified answers; 23
chromosomes
An organisms' appearance is it's __________ while the alleles an organism has is it's
__________. - verified answers; phenotype ; genotype
What are Phenotypes? - verified answers; how alleles are expressed
What are Genotypes? - verified answers; the alleles an organism contains
How many alleles are in each genotype? - verified answers; 2 alleles because one comes from
each parent
What is a Karyotype? - verified answers; tool used to view chromosomes
, What is wrong with a karyotype that has 3 copies of one chromosome on the 27th
chromosome? - verified answers; Trisomy 21 and is the most common example of mental
retardation
When there is 3 copies of one chromosome, what is the factor that affects life expectancy? -
verified answers; the amount of genes the specific chromosome contains
(ex. There aren't that many genes on chromosome 21 so this condition is survivable. Although
Trisomy 18 contains many more genes and individuals don't live past a few years)
What could cause a triploid embryo? - verified answers; 1. A normal egg fertilized by a sperm
with 2 of every chromosome
2. A normal egg fertilized by two sperm
3. An egg that has two of every chromosome fertilized by a normal sperm
Who is considered the "Father of genetics" - verified answers; Gregor Mendel
What did Mendel study? - verified answers; studied traits determined by single genes
What kind of genes is the environment referred to as? - verified answers; multi-factorial genes
Flower color in pea plants and sickle cell anemia in humans are good examples of... - verified
answers; Mendelian traits
(ex. Phenotype will show an either/or trait. Either the flower color is purple or white, either
you have sickle cell anemia or you do not)
Is Water a macromolecule? - verified answers; No because macromolecules must have carbon
What 3 things do proteins do? - verified answers; 1. Enzymes
answers
What is the difference between a gene and an allele? - verified answers; Genes code for
proteins and alleles are variants of genes
______ is for color of a flower and the ______ is purple or white - verified answers; Gene ;
Allele
Alleles are indicated by ________ _________. - verified answers; Different sequences
Normal hemoglobin is ___ and mutant hemoglobin is ___ - verified answers; CTT ; CAT
You receive half of your DNA from each parent but ___________. - verified answers; each cell
in your body contains genes from both parents
What is a difference between DNA and RNA? - verified answers; DNA has the sugar
deoxyribose and RNA has sugar ribose
1. RNA's bases are AUGC and DNA's bases are ATGC
2. DNA and RNA have the same phosphate groups
3. DNA is double stranded typically and RNA is single stranded
DNA contains the instructions for _______. - verified answers; proteins
RNA is the ______ _______ needed for construction of proteins - verified answers;
intermediary vehicle
,Proteins are formed outside of the nucleus in _________. - verified answers; ribosomes.
RNA is needed to _____________ from the DNA to the ribosomes - verified answers;
transport the instuctions
DNA's base pairs are __-__ and __-__ - verified answers; A-T and C-G
RNA's base pairs are __-__ and __-__ - verified answers; A-U and C-G
How many chromosomes do humans have in most of their cells? - verified answers; 46
chromosomes (sperm 23 + egg 23)
How many chromosomes do humans have in reproductive cells? - verified answers; 23
chromosomes
An organisms' appearance is it's __________ while the alleles an organism has is it's
__________. - verified answers; phenotype ; genotype
What are Phenotypes? - verified answers; how alleles are expressed
What are Genotypes? - verified answers; the alleles an organism contains
How many alleles are in each genotype? - verified answers; 2 alleles because one comes from
each parent
What is a Karyotype? - verified answers; tool used to view chromosomes
, What is wrong with a karyotype that has 3 copies of one chromosome on the 27th
chromosome? - verified answers; Trisomy 21 and is the most common example of mental
retardation
When there is 3 copies of one chromosome, what is the factor that affects life expectancy? -
verified answers; the amount of genes the specific chromosome contains
(ex. There aren't that many genes on chromosome 21 so this condition is survivable. Although
Trisomy 18 contains many more genes and individuals don't live past a few years)
What could cause a triploid embryo? - verified answers; 1. A normal egg fertilized by a sperm
with 2 of every chromosome
2. A normal egg fertilized by two sperm
3. An egg that has two of every chromosome fertilized by a normal sperm
Who is considered the "Father of genetics" - verified answers; Gregor Mendel
What did Mendel study? - verified answers; studied traits determined by single genes
What kind of genes is the environment referred to as? - verified answers; multi-factorial genes
Flower color in pea plants and sickle cell anemia in humans are good examples of... - verified
answers; Mendelian traits
(ex. Phenotype will show an either/or trait. Either the flower color is purple or white, either
you have sickle cell anemia or you do not)
Is Water a macromolecule? - verified answers; No because macromolecules must have carbon
What 3 things do proteins do? - verified answers; 1. Enzymes
