Genotypes, Phenotypes, and Punnetts Square

  • Due May 5, 2023 at 11:59pm
  • Points 46
  • Questions 7
  • Available after Apr 26, 2023 at 12am
  • Time Limit None
  • Allowed Attempts 5

Instructions

Introduction:

Every trait that an organism has is described by a genotypes and a phenotype.  The genotype is the set of genes that codes for that trait.  In other words, it is the two alleles that describe that trait ( for example "BB" or "bb").  The phenotype describes how that trait is expressed, or the  characteristic that we can actually see    (for example "brown hair" or "blond hair").  

In this activity, we will practice identifying genotypes and phenotypes by describing the traits of a bug family.  We will show how offspring receives one allele from each parent, combining the two to develop its own genotype.  In turn, that genotype determines what the phenotype of the offspring will be. 

BUG TRAITS

DOMINANT RECESSIVE
RR or Rr Red Antennae rr Green Antennae
SS or Ss 3 Body Segments ss 2 Body Segments
CC or Cc Curly Tail cc Straight Tail
LL or Ll 3 Pairs of legs ll 2 Pairs Legs
BB or Bb Blue Nose bb Green Nose
GG or Gg Green Feet gg Black Feet
EE or Ee 2 eyes ee 3 Eyes

 

 

 

 

 

Only registered, enrolled users can take graded quizzes