HAPPY NEW

YEAR!Take out a sheet of paper and

textbooks, please

FIRST THINGS FIRST! You have new assigned seats for this semester!

Please follow as instructions will be given.

HOW WAS MY VACATION? AWESOME!

What did I do? flew to LAS VEGAS, NV to visit my BFF from HS for a week

walked around everywhere went shopping -_-

WHAT ELSE HAPPENED?

after 6 years and 11 months…

I GOT ENGAGED!!

REVIEW ON THE RULES NO gum or candy inside the lab classroom

We are now on the 3rd quarter for your green hall passes.

No hall pass?? You cannot borrow someone else’s pass anymore!

Use the restroom before or after class unless you have a doctor’s note specifying you need to go!

No late homework accepted! Turn in homework as soon as you walk in. Once folder is picked up---IT IS LATE!! Don’t try to sneak it in. I check homework in as you work on BellRingers.

No sleeping or putting your head down--- you may be sent out into the hallway and make-up work must be done after school

You must have a composition book!!!!

REMEMBER… Your attitude reflects so many things in

this class…

Your gradesYour work ethic (how well you work)Ms. Taino’s attitudeYour classmate’s attitudeHow fast the period will seem

SO PLEASE RESPECT YOURSELF, CLASSMATES, ROOM, and MS. TAINO

ABSENT THE DAY BEFORE? Check your appropriate binder and the

section on the day(s) you were absent.

In your compositions, just copy the BellRinger question and find the answer in complete sentences on your own.

And show me this page sometime during the Work Period, so I, myself can write you were absent…YOU DO NOT WRITE ABSENT---I DO!

PROTEIN SYNTHESIS Protein Synthesis

aka: TranslationRibosomes use the sequence of codons in

mRNA to assemble or make amino acids into polypeptide chains.

PROTEIN SYNTHESIS What is the start codon?

AUG What are the 4 bases of DNA?

A T G C What is the “central dogma” of molecular biology?

DNA RNA protein What are the 4 bases of RNA?

A U G C The genetic code is a language, how many bases

form this “language”? 3

Where does Transcription occur? Nucleus or cytoplasm? Nucleus

Where does Translation occur? Nucleus or cytoplasm? Cytoplasm or ribosomes

CELL CYCLE AND MITOSIS

CELL CYCLE What are the 3 phases of Interphase?

G1 (growth), S, G2

What happens in the S phase?DNA replication

What regulates or controls the cell cycle?A protein named CYCLIN: regulates the

timing of the cell cycle in eukaryotic cells

MITOSIS

MITOSIS What type of reproduction does Mitosis

go through?Asexual reproduction

What are the 4 phases of Mitosis in order?Prophase, Metaphase, Anaphase,

Telophase

How do daughter cells split apart after Mitosis, what is that process called?Cytokinesis

MITOSIS: PROPHASE First phase of mitosis and usually the

longest.

The genetic material inside the nucleus reduces and the duplicated chromosomes become visible. Outside the nucleus, a spindle starts to form.

MITOSIS: METAPHASE Generally the shortest phase. The centromeres of the duplicated

chromosomes line up across the center of the cell.

Spindle fibers connect the centromere of each chromosome to the 2 poles of the spindle.

MITOSIS: ANAPHASE The chromosomes separate and move

along spindle fibers to opposite ends of the cell.

This movement stops and the chromosomes are completely separated into 2 groups.

MITOSIS: TELOPHASE

4th and final phase of Mitosis

The chromosomes, which were distinct and packed into, begin to spread out into a tangle of chromatin.

Nuclear envelope re-forms, spindles begin to break apart, and a nucleolus becomes visible in each daughter nucleus.

CYTOKINESIS Completes the process of cell division. It splits one cell into two.

INTRODUCTION TO MEIOSIS

“MY – OH – SIS”: a process in which the number of chromosomes per cell is cut in half through the separation of homologous chromosomes in a diploid cell.

Meiosis involves 2 divisions: Meiosis I and Meiosis II

VOCABULARY Take out a sheet of paper.

Label your sheet, “Ch. 11 Vocabulary Guide”

You may write on the back.

This is YOURS! Make it the way you prefer.

Turn to page 323 of your textbooks.

You will do the 7 vocabulary words listed on the right side of the page on your sheet of paper.

You are not turning that in to me.

VOCABULARY

Homologous:

Diploid: 2n

Haploid: N