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KUTZTOWN UNIVERSITY OF PENNSYLVANIA / Biomed Engr/Joint / BIO 10 / What did watson and crick discover in 1953?

What did watson and crick discover in 1953?

What did watson and crick discover in 1953?

Description

School: Kutztown University of Pennsylvania
Department: Biomed Engr/Joint
Course: Intro to Biology
Professor: Robyn underwood
Term: Spring 2017
Tags: Biology, mendel, Chromosomes, Genetics, Mitosis, Meiosis, and DNA
Cost: 50
Name: BIO Exam 2 Study Guide
Description: This covers some material that will be on our next exam
Uploaded: 03/06/2018
2 Pages 51 Views 4 Unlocks
Reviews


Intro to BIO- Hoptak- Exam 2 Study Guide Highlight = Important Principle Highlight = Important Concept Highlight = Key Term


What did watson and crick discover in 1953?



DNA

- Discovery

- Discovered by Watson & Crick in 1953

- Rosalind Watson not given credit

- Double helix: nucleic acid & nucleotides 

- DNA v. RNA

- RNA uses uracil instead of thymine

- Differ with bases but primarily with sugar

- *G w/ C ; A w/ U

- Transcription to translation to protein

- Bases (4)

- Single ring: Thymine (T), Cytosine ( C ) 

- Double ring: Adenine (A), Guanine (G) 

- Make up the steps of ladder

- 1 side of ladder pairs with other side: A w/ T ; C w/ G

- *Exam question* Fill in corresponding base pairs for DNA sequence


What are the component of double helix?



- A T C G T T A C C G

- T A G C A A T G G C

- DNA Replication

- Cell divides and makes copy

- Pieces of DNA pull apart like bubbles

- Once open, DNA is like zipper, creating new DNA and adding bases to end up w/ original molecule

- Nucleotide

- Base 

- Sugar 

- Phosphate

Genetic Code

- Codons

- 3 bases that produce 1 amino acid

- Read 3 at a time

- Each living organism on earth uses this code If you want to learn more check out What is the role of older siblings with disabilities?

Cell Reproduction

- Cell Division

- Necessary for all life

- Mitosis 


How is dna replicated?



- Replace lost/damaged cells

- For growth

- To maintain cell number

- Happens every few days

- Meiosis 

- Basis of sexual reproduction in mammals

- In reproductive cells it produces the sperm and eggs - *Big function is keeping 23 chromosomes If you want to learn more check out What is lantern?
We also discuss several other topics like Gross profit margin refers to what?

- Turner Syndrome

- Women

- Can lead to pregnancy trouble

- Missing an X chromosome

Mendel

- Principles of Fertilization 

- Cross fertilize pea plants

- Monohybrid cross found people only differ in 1 part - Dominant Allele v. Recessive allele Don't forget about the age old question of What is the polio virus?
We also discuss several other topics like Sensation means what?

- Genotype v. Phenotype If you want to learn more check out What is the preliminary hearing?

- Heterozygous v. Homozygous

- Phenotype v. Genotype

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