Do you know what alleles are?
Genetics Terminology Quiz
DNA – Deoxyribonucleic acid. This stores our genetic information, including instructions to make new cells.
Gene – A gene is a small section of DNA on a chromosome that codes for a specific sequence of amino acids, to make a specific protein.
Genome – The whole collection of DNA that each individual has.
Gene pool – The whole collection of genes that are present in a breeding population.
Chromosome – Long coiled-up parts of DNA that contain genes.
Allele – A particular version of a gene.
Heterozygous – When an individual has different alleles of a particular gene in their genotype.
Homozygous – When an individual has the same alleles of a particular gene in their genotype.
Genotype – The alleles an organism has for a particular gene.
Phenotype – The physical characteristics of an organism, determined by its genotype and environmental factors.
Zygote – An egg cell that has been fertilised by a sperm cell.
Gametes – The male and female sex cells – sperm and eggs.
Haploid – Cells that contain only half of the genetic material contained within the genome. Sperm and egg cells are haploid.
Diploid – Cells that contain the full set of DNA within the genome.
Recessive allele – Recessive alleles are not expressed unless they are the only alleles present in the genotype. Recessive alleles can lead to diseases such as cystic fibrosis.
Dominant allele – Dominant alleles are always expressed, so long as they are present in the genotype for a particular gene.
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What is a gamete?CorrectIncorrect
Which term do we use to describe the entire DNA of an individual?CorrectIncorrect
DNA molecules are very long and coiled up into which structures?CorrectIncorrect
Genome, gene, genotype, protein, chromosome, amino, gamete, phenotype
A is a small section of DNA on a that codes for a specific sequence of acids, to make a specific .
What is an allele?CorrectIncorrect
Drag and drop to match the term and description
- Both alleles for one gene are the same
- Both alleles for one gene are different
If two different alleles are present, which will decide the inherited characteristic for that gene?CorrectIncorrect
Drag and drop to match the role and structure
- Physical characteristics of an organism
- The alleles an organism has
What is a zygote?CorrectIncorrect
What term do we use to describe a cell with only one set of chromosomes, rather than two?CorrectIncorrect
How many sets of chromosomes does a diploid cell have?CorrectIncorrect