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WorksheetsBiology 2.5 Genetic Variation PRE Quiz
Total questions: 14
Worksheet time: 7mins
DNA that is tightly coiled up so it fits inside a cell
Centromere
Chromatin
Chromosome
Plasmid
Chromosomes in humans come in _________ pairs
Centromere
Chromosome
Gene
Homologous
Sperm and egg cells are also called...
Gametes
Sex cells
Somatic cells
Autosomes
Body cells that are not gametes are called ...
Autosomes
Sperm
Somatic cells
Brain cells
Variations of the same gene are called
mutations
genotypes
heterozygous
alleles
If you inherit two of the SAME allele your genotype is...
homozygous
heterozygous
dominant
recessive
If you inherit two different alleles for a gene your genotype is ....
heterozygous
homozygous
dominant
recessive
A phenotype that is expressed even when you only have one allele for it is called....
dominant
recessive
A phenotype that is expressed ONLY when you have two copies of it is....
recessive
dominant
Completely NEW alleles are created by...
mitosis
mutations
meiosis
Gametes are created by...
Mitosis
Meiosis
New somatic cells are created by...
mitosis
meiosis
New combinations of already existing alleles are created by...
sexual reproduction
asexual reproduction
A quick reproductive method that creates genetically identical offspring every time...
sexual reproduction
asexual reproduction
