/ Teachers / Blogs
Your Cell Division quiz grades are entered and you can check them out on Blackbaud. If you have any missing assignments, you need to get them in to me. Please see me for any make up work.
Breakfast with Santa
Saturday, December 3
8:00-11:00 am
SJNRCS Cafeteria
Tickets ($5.00 each) available starting Tuesday
Watch for flyer coming home with your child on Monday
for details and order form.
Middle School students are welcome to volunteer as Santa's helpers as part of their service to the school as we continue to strive to meet Rachel's Challenge. They will let their homeroom teacher know if they want to be added to the list of available Santa helpers. The committee will select the number that they will need from this list of volunteer helpers.
Remember: an organism will have 2 alleles per trait; no more , no less. The paired alleles are called the "Genotype" for that trait. How that genotype is expressed or shows up in an organism is called the "Phenotype."
Those alleles could be either dominant, written with an upper-case letter or recessive, written with a lower case letter. If a dominant allele is present it will cover up or mask the recessive allele.
A genotype with two upper-case letter is homozygous dominant and the dominant trait will show. A genotype with two lower-case letters is homozygous recessive and the recessive trait will show. A genotype with one of each is heterozygous and the dominant trait will show. Recall that the prefix "homo-" means "the same" and "hetero-" means different.
Example: Tongue rolling (taco tongue) is recessive to non-tongue rolling. So we will asign a lower-case "t" to the recessive allele and an upper-case "T" to the dominant allele. A homozygous recessive genotype "tt" will have the phenotype of tongue rolling. A homozygous dominant genotype "TT" will have the phenotype of a non-roller and a heterozygous genotype "Tt" will also have the phenotype of a non-roller because that dominant allele will cover up the recessive one.
Challenge: Go around to all of your family members and see if they are tongue rollers or not. Try to predict your parents' phenotypes.
Be sure to read over your terms for 3.4 for the "assessment" tomorrow.
Quick and easy to set up
