Biology: Genetics and Inheritance

(a)   each contain many genes which are comprised of DNA

all the genes of an entire human being

• genome

• phenotype

• genotype

• genetic composition

______ refers to the set of observable characteristics of an organism; ______ is an organism's genetic composition

• phenotype; genotype

• genotype; phenotype

• genetic composition; phenotype

• alleles; genotype

a gene in which both alleles are the same; "purebred"

• gene

• heterozygous

• homozygous

• homologous

a gene in which the 2 alleles are different

• dominance

• homozygous

• chromosomes

• heterozygous

Which one of these is NOT one of Mendel's Laws?

• The Law of Segregation

• The Law of Transitive Genetics

• The Law of Independent Assortment

• The Law of Dominance

"the separation of alleles for a given gene occurs independently to that of any other gene; this does not apply to genes located on the same chromosome (linked genes)". This is an explanation of The Law of (a)  

"every organism acquires 2 alleles for each trait, with one from each parent; although living organisms possess 2 alleles for each trait, they "segregate" or separate in the reproductive process". This is an explanation of The Law of (a)  

"an offspring inherits one gene encoding a version of a given characteristic from its biological father and the other from its biological mother; this law establishes which genes manifest as characteristics in the new organism". This is an explanation of The Law of (a)  

_____ genes will always be completely expressed if present in the genetic code, while _____ genes will only be completely expressed if both parents contributed those alleles

• recessive; dominant

• dominant; purebred

• dominant; recessive

• recessive; purebred