13 questions
A segment of DNA that codes for a trait
gene
centromere
chromosome
chromatid
an observable characteristic
trait
personality
cell
DNA
Genetic traits are determined by one or more
genes
organelles
random chances
cells
A version or variation of a gene
trait
gene
allele
DNA
The alleles that an organism has/inherits are its
genotype
phenotype
chromosome
recessive
The observable expression of a trait is its
phenotype
genotype
chromosome
allele
When an organism has two of the same alleles, it is called
homozygous
heterozygous
recessive
dominant
When an organism has two different alleles, it is called
homozygous
heterozygous
recessive
dominant
Long strands of DNA are wrapped into
DNA
Chromosome
Alleles
Phenotype
______ is the set of genes possessed by someone
Karyotype
Fingerprint
Genotype
Phenotype
Humans have _______ pairs of chromosomes, for a total of _______ chromosomes.
10, 20
25, 100
23, 46
46, 92
The physical expression of a trait.
phenotype
genotype
chromosome
allele