Genetics Packet C26 What are most homologous chromosomal

Genetics Packet C-26

What are most homologous chromosomal pairs called? �Homozygous or Pure

What are sex chromosomes? �Chromosomes which determine if you are a male or female.

What code represents a male? �XY

What code represents a female? �XX https: //www. youtube. com/watch? v=k. MW xu. F 9 YW 38

Sex Linked Traits �What are sex linked traits? Traits located on the sex chromosome �What two traits are related to sex linkage? Color blindness and hemophelia

Gene Linkage �What is gene linkage? Two different traits on the same chromosome. �True of False? Eye and hair color are a product of gene linkage…

Crossing Over �What is crossing over? Alleles become separated �When does crossing over occur? During meiosis (gamete creation) �True or False? Crossing over REDUCES variation

Multiple Gene Inheritance �What is multiple gene inheritance? A group of genes that influence a physical characteristic �What is an example of multiple gene inheritance? Human height

DNA �What is it? Deoxyribose Nucleic Acid �What is its shape? Double helix �Who identified the DNA molecule? Miescher (1869) and Levene (1919) � 5 Carbon Sugar? Deoxyribose

Nitrogenous Bases �Guanine – Cytosine �Adenine – Thymine �A-T �C-G

RNA �What is RNA? Replicated DNA �What is the function of RNA? To copy the DNA code �RNA vs. DNA: Double Helix RNA: Half of DNA chain

RNA �What is messenger RNA? Transfers RNA from Nucleus to the ribosome �What is transcription? Copying DNA into m. RNA in gene expression �What is a codon? 3 base system that codes for enzymes

RNA �What is transfer RNA? Transfers RNA to the ribosomes for protein synthesis �What is its function? To create an amino acid sequence for enzymes �What type of RNA is connected with the ribosome? t. RNA