Flashcards

Inheritance

Olivia Reid Biology Year 10 Inglês 11 flashcards

Flashcards do conjunto (11)

1InheritanceHow traits or characteristics are passed on from generation to generation.
2AlleleA variation of the gene for a particular trait/characteristic
3GeneA section of DNA that codes for a protein
4PhenotypeThe observation characteristics of an organism, it's appearance. Eg. tall, short, round, etc.
Remember to say percentage. Eg. 100% brown eyes or 75% long arms, 25% short arms.
5GenotypeThe set of genes in our DNA which is responsible for a particular trait. The genetic makeup of an individual.
Eg. 100% Bb or 75% BB, 25% Bb.
6Dominant AlleleThe characteristic always seen in the offspring. It always overpowers the other allele.
Eg. If B=brown eyes & b=blue eyes than B is dominant (capital letter)
If someone had a genotype of Bb the person would have brown eyes but carry a recessive gene.
7Recessive AlleleThe characteristic masked by a dominant one.
- Lower case letter
- Has to have 2 recessive alleles to show (eg. bb = blue eyes but Bb = brown eyes)
8HeterozygousHaving two different kinds of allele. (Eg. Bb, eE, Gg, Yy, etc.)
9HomozygousHaving the same alleles for a particular characteristic. Eg. TT, bb, ee, GG, PP, etc.
10Monohybrid GeneticsLooking at how 1 trait (characteristic) is passed on to the next generation. It always has a dominant and recessive gene.
11Punnet Squares