sex cells.
Somatic cells include all of the following except
appear to function in similar ways across diverse groups of organisms.
Hoxgenes
Prokaryotes
________ are organisms lacking any internal compartments.
meiosis.
Chromosome number is reduced during
is determined by genes at several loci in conjunction with environmental factors.
The expression of polygenic traits
carry genetic information that influences the same trait.
Homologous chromosomes
four gametes.
Meiosis results in the production of
3.7 bya.
Incorrect
Prokaryotes first appeared
each contains half a copy of an organism's DNA.
Somatic cells are characterized by all of the following except
highly individualized repetitive stretches of nuclear DNA.
Microsatellites are
passed from mother to offspring.
Mitochondrial DNA is
is the template for every aspect of an organism.
DNA
proteins
Most human nuclear DNA is coded to produce ________ .
AO.
Individuals whose blood type is A and who carry both dominant and recessive genes at this locus have a genotype of
mammals have differing number of chromosomes.
Within the kingdom Animalia
because of nondisjunction, which yields an extra chromosome.
Down syndrome can occur
is usually masked in the phenotype.
The presence of a recessive allele
uracil instead of thymine.
RNA differs from DNA in that it uses
it is biological code for the production of hormones and enzymes, it serves as a template for protein production, & it provides the code to produce structural proteins.
DNA is important for protein synthesis because
codominance.
The two alleles that result in the expressed phenotype for hemoglobin are equally expressed. This is an example of
22 autosomal chromosome pairs and one pair of sex chromosomes
What makes up a human karyotype?
In order for traits to respond to natural selection
In order for traits to respond to natural selection
applies to the law of independent assortment.
In his work on pea plants, Mendel found that plant height was inherited independently of the type or color of the seed coat. This finding
the Y chromosome is present in males only.
In mammals, the male parent's gametes determine the sex of his offspring because
type AB blood.
An individual that is homozygous at the locus that determines ABO blood type may have any of the following except
is the proportion of its variation that is genetic.
A trait's heritability
two identical daughter cells
DNA replication produces
adenine and thymine.
The following are complementary bases in DNA
Mendel's law of segregation.
In his experiments with garden peas, Mendel found that one physical unit is inherited from the father and one from the mother. This provided evidence fo
chains of amino acids.
Proteins consist of
it is the "recipe" for all biological characteristics and functions.
Deoxyribonucleic acid (DNA) differs from ribonucleic acid (RNA) in that
controlled by multiple alleles.
Human ABO blood types are
the genome.
The complete set of genes in an individual cell is called
prior to cell division.
DNA replication takes place
responsible for the development and location of key body parts.
Homeotic (Hox) genes are:
uracil.
Nucleotide bases in nuclear DNA include all of the following except
not likely to recombine during crossovers.
Haplotypes are
regulatory gene
The gene responsible for lactose persistence among adults in Europe is a
seeks complementary triplet strands of mRNA codons, contains codons that correspond to specific amino acids, & brings amino acids together to form polypeptide chains.
Transfer RNA
occurs in the nucleus.
Transcription
haploid.
Gametes are