What we will do What we will learn 10N 28 Poutū-te-Rangi 2017 Quick quiz and preliminaries How to start well Revisit genetics intro: dominant, recessive, allele, heterozygous, homozygous, punnett square AND introduce genotype and phenotype Useful definitions for the buzzwords in this topic See why Cystic Fibrosis happens and what being a “carrier” means How genetic diseases affect humans Use Punnett squares to compare CF scenarios. How being a “carrier” can be passed along If time, do a Punnett square on Jimmy and Jeannie How Punnett squares works with dog breeding
Yesterday was Jackie’s birthday Important Notice Yesterday was Jackie’s birthday
10N – Seating Plan Front of lab - Whiteboard
HW item Skills practiced HW booklet pages on skeletal system, muscles and joints, blood and heart, circulatory system Pages 1 - 8 Due Thursday 2nd of March 2017 Time management Knowledge of three systems in the body HW booklet pages 9 – 18: circulatory, breathing and digestive systems. Due Monday 20th of March 2017 HW booklet pages 19, 27, 28, 29 Human Reproduction Due Zenday 37th of Octember Human Reproduction
NAME FUNCTION Testes Penis Vas Deferens (Sperm Tube)
Lived from 1822 to 1884 in the Czech Republic Lived from 1822 to 1884 in the Czech Republic. He investigated INHERITANCE (which is info passed on from one generation to the next). He planted peas and did lots of observations and measurements to investigate TRAITS or CHARACTERISTICS. His work – plus that of some others – showed that there is a reason that all living things have two copies of each gene. An ALLELE is one of TWO possible version of a gene. One version is DOMINANT (its message is stronger) and one version is RECESSIVE (its message is weaker). The dominant message will come through unless BOTH copies are recessive.
Word Meaning Dominant An allele which controls what an organism looks like. (The more powerful message of the two possible) Recessive Only shows up when there are two of these. (The weaker of the two possible – so it shows up when the other one is missing) Homozygous Containing two identical forms of the same gene. (Both dominant or both recessive) Heterozygous An individual containing two different forms of the gene. Allele Different forms of a gene. Genotype The genetic make-up of an individual. The “type-o’-gene”. i.e. is it heterozygous, homozygous dominant or homozygous recessive? Phenotype The physical characteristics of an individual. “Phenotype” is “the TYPE of PHENOmenon”. i.e. – what shows up.
For this breed of dog, long hair (H) is dominant of short hair (h)
For this breed of dog, long hair (H) is dominant of short hair (h) Jimmy (hh – short hair)
For this breed of dog, long hair (H) is dominant of short hair (h) After mating, Jeanny produces six pups Jimmy (hh – short hair)
For this breed of dog, long hair (H) is dominant of short hair (h) After mating, Jeanny produces six pups Jimmy (hh – short hair) Jeanny (HH – long hair)
For this breed of dog, long hair (H) is dominant of short hair (h) After mating, Jeanny produces six pups Jimmy (hh – short hair) Jeanny (HH – long hair) Draw up a Punnett square to predict the hair length of the pups.
For this breed of dog, long hair (H) is dominant of short hair (h) After mating, Jeanny produces six pups Jimmy (hh – short hair) Jeanny (HH – long hair) Draw up a Punnett square to predict the hair length of the pups.
For this breed of dog, long hair (H) is dominant of short hair (h) After mating, Jeanny produces six pups Jimmy (hh – short hair) Jeanny (HH – long hair) Draw up a Punnett square to predict the hair length of the pups.
For this breed of dog, long hair (H) is dominant of short hair (h) After mating, Jeanny produces six pups Jimmy (hh – short hair) Jeanny (HH – long hair) Draw up a Punnett square to predict the hair length of the pups. Write down what the phenotype and the genotype are for the pups