Predicting Inherited Traits
CONCEPTUALExplain how alleles are inherited in sexual reproduction and use Punnett squares to predict the probability of offspring inheriting a characteristic, including dominant and recessive alleles
Mastery Evidence
- Defines allele, dominant, and recessive in the context of inheritance
- Constructs a Punnett square for a monohybrid cross and calculates probability ratios
- Explains the difference between genotype and phenotype
- Gives an example of a human characteristic controlled by dominant/recessive alleles
Assessment Prompt
“If [child] was asked why two brown-eyed parents can have a blue-eyed child, could they explain what dominant and recessive alleles are and show how it works using a Punnett square?”
Curriculum Standards2 alignments
MS-LS3-2Next Generation Science Standards (NGSS) Middle Schoolcodes onlyKS3.Sci.Bio.Adaptation.6The national curriculum in Englandthe mechanism of inheritance in sexually reproducing organisms: DNA, genes, chromosomes, alleles and the inheritance of characteristics using simple Punnett squares
Prerequisites2
- DNA & GenessoftAges 12—14
- Chromosomes, Genes & DNAhardAges 12—13
Show full prerequisite tree
- Chromosomes, Genes & DNA hard
DNA structure and replication depends on chromosomes and Mendelian inheritance
- Cells Under the Microscope hard
DNA is housed in the nucleus of cells — the cell as fundamental unit must be understood before studying what's inside the nucleus
- Chromosomes, Genes & DNA hard
Punnett squares and allele inheritance require a firm understanding of genes and chromosomes
- Cells Under the Microscope hard
DNA is housed in the nucleus of cells — the cell as fundamental unit must be understood before studying what's inside the nucleus
Unlocks0
No topics build on this one.