4. SEX-LINKED INHERITANCE autosomes—22 pair in people heterosomes—1 pair in people (XY sex chromosomes) XX=female XY=male Red-green color blindness in people: PREVIOUSLY NOTED FROM TUESDAY SEPTEMBER 3‚ 2013 5. No dominance example homozygous black= black chicken homozygous white= white chicken heterozygous= gray 6. Multiple factors Several sets of alleles on entirely different chromosomes affect the expression of a single characteristic. Skin color in people Stature on people
Free DNA RNA Gene
Nucleic acids‚ DNA and RNA‚ are very important molecules in living organisms. Messenger RNA (mRNA) and transfer RNA (tRNA) are involved in the synthesis of proteins. For each of the statements (a) to (f )‚ put a cross correct statement. in the box that corresponds to the (a) DNA and RNA are polynucleotides composed of mononucleotides joined by (1) A catabolic reactions B condensation reactions C hydrolysis reactions D redox reactions (b) The mononucleotides of RNA consist of a phosphate
Free DNA RNA Heart
CHAPT 1 - The scientific method allows the solving of problems and answering of questions. Observations Proposing ideas Testing the ideas Discarding or modifying ideas based on results Hypothesis: proposed explanation for a set of observations Hypotheses needs to be: Testable – it must be possible to examine the hypothesis through observations Falsifiable – it must be able to potentially be proven false Both logical and creative influences are used to develop a hypothesis A hypothesis
Premium DNA Gene Cell
Final Exam Review Packet Name: _Susan Clark Chapter 1: 1. | An investigator who conducts an experiment to determine how temperature changes affect the rate at which the heart beats is most likely a(an) A. | anatomist. | B. | physiologist. | C. | chemist. | D. | biochemist. | E. | physicist. | | 2. | The branch of science that deals with the structure of human body parts is called anatomy. | 3. | The branch of science that deals with the functions of human
Free DNA Cell Oxygen
process of creating an equivalent RNA copy of a sequence of DNA Transcription is the first step leading to gene expression. The stretch of DNA transcribed into an RNA molecule is called a transcription unit and encodes at least one gene. Occurs in nucleus of the cell Translation: Translation is the production of proteins by decoding mRNA produced in transcription. Translation occurs in the cytoplasm where the ribosomes are located. In translation‚ messenger RNA (mRNA) is decoded to produce a specific
Premium DNA Gene RNA
Chapter 1 Section 1 Anatomy-Study of internal and external structures of the body and the physical relationships among body parts Gross Anatomy -involves the examination of relatively large structures and features usually visible with the unaided eye Microscopic Anatomy-deals with structures that cannot be seen without magnification Physiology-the study of function and considers the functions of the human body Anatomy and physiology are closely interrelated Theroretically Practically Anatomical
Premium Cell DNA Protein
organelle that supplies energy to the cell and has its own ribosome and DNA. 15. tRNA: Brings amino acids from the cytoplasm to a ribosome to help make the growing protein. 16. mRNA: Is an intermediate message that is translated to form a protein. 17. RNA: Nucleic acid molecule that allows for the transmission of genetic information and protein synthesis.
Free DNA Protein Cell
Elongation of the RNA Strand * The congregation of many polymerase molecules simultaneously transcribing a single gene increases the amount of mRNA transcribed from it‚ which helps the cell make the encoded protein in large amounts. * A single gene can be transcribed simultaneously by several molecules of RNA polymerase following each other like trucks in a convoy. * The enzyme adds nucleotides to the 3’ end of the growing RNA molecule as it continues along the double
Premium DNA Gene Protein
7.1.1 Describe the structure of DNA‚ including the antiparallel strands‚ 3’-5’ linkages and hydrogen bonding between purines and pyrimidines. DNA is made up of two strands. At one end of each strand there is a phosphate group attached to the carbon atom number 5 of the deoxyribose (this indicates the 5’ terminal) and at the other end of each strand is a hydroxyl group attached to the carbon atom number 3 of the deoxyribose (this indicates the 3’ terminal). The strands run in opposite directions
Premium Protein DNA Amino acid
Updated March 2011 DNA‚ RNA structure and function Why are multiple copies of tRNA and rRNA genes needed? a. These RNAs are destroyed very rapidly. b. These RNAs are very stable. c. These RNAs are needed in large amounts. d. These RNAs do not benefit from the extra amplification step that occurs for protein-encoding genes. e. c and d If you treat mitotic chromosomes with solutions that extract histones‚ what happens? a. The chromosomes become more condensed
Premium DNA Gene RNA