The passing on of characteristics or traits from one generation to the next is called _____________. The study of inheritance involves a branch of science called _____________________. The passing on of characteristics or traits from one generation to the next is called _____________. The study of inheritance involves a branch of science called _____________________. When ____________________ takes place, the zygote receives a pair of each chromosome (23 pairs), one maternal and one paternal chromosome for every pair. When ____________________ takes place, the zygote receives a pair of each chromosome (23 pairs), one maternal and one paternal chromosome for every pair. Located within these chromosomes are the _____________ for particular characteristics. Located within these chromosomes are the _____________ for particular characteristics. Alternative forms or expressions of a gene are called _______________ e.g. brown or blue eye colour. Alternative forms or expressions of a gene are called _______________ e.g. brown or blue eye colour. Alleles come in ________ different forms: recessive (denoted as a small ___________, e.g., a) and dominant (denoted as a ______________ letter, e.g., A). Alleles come in ________ different forms: recessive (denoted as a small ___________, e.g., a) and dominant (denoted as a ______________ letter, e.g., A). Your _________________ (combination of alleles) is determined by the genetic information in the chromosomes that you received from your parents. Your _________________ (combination of alleles) is determined by the genetic information in the chromosomes that you received from your parents. Your ___________________ (or observable trait) is determined by both your genotype and your environment e.g. freckles = gene for freckles + exposure to sun Your ___________________ (or observable trait) is determined by both your genotype and your environment e.g. freckles = gene for freckles + exposure to sun If your alleles for that gene are the same (e.g. BB or bb), then you are described as homozygous (or pure breeding) If they are different (e.g. Bb) then you are _____________________ (or hybrid) for that trait. If your alleles for that gene are the same (e.g. BB or bb), then you are described as homozygous (or pure breeding) If they are different (e.g. Bb) then you are _____________________ (or hybrid) for that trait. A genotype of BB can be described as homozygous ______________, while a genotype of bb can be described as homozygous recessive. A genotype of BB can be described as homozygous ______________, while a genotype of bb can be described as homozygous recessive.
