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Genetics Test

QuestionAnswer
How many chromosomes do we have in each cell? In each cell we have, 23 pairs, 46 in total. Except in sex cells, where we only have 23 singles.
Define genome. Genome is all the genes in the body added up.
Define corrolation. That two things change together.
How many genes does the human body contain? About 23-24000 genes.
Which four proteins make up the base pairs? Cytosine, Adenine, Thymine and Guanine.
What are the chromosomes that determines gender? xx = Girl xy = Boy
Define Homologons. Homologons means corresponding.
Define Homozygous. Homoqygous means the same (RR,rr).
Define Hetrozygous. Hetrozygous means different (Rr).
Define Genotype. Genotype means that a person carries genetic information that cannot be seen.
Define Fenotype. Fenotype means that a person carries the dominant genetic information that is visable.
What is the Punnett Square? The punnett square is the sqaure created when you combine genes from both mom and dad to create possible genetic combinations.
Define Causation. Things thare are caused by each other.
What is RNA? RNA uses uracil (U) instead of thymine (T). Copies information from DNA during transcription.
What is MRNA? Messenger RNA.
What is TRNA? Transfer RNA.
What are amino acids? What proteins are made of. (Research more)
What is Ribosomes? Protein making machinery.
What is protein synthesis? How information in genes are made into things we need. (1. Transcription - In nucleus, transfers copied information from DNA to RNA.) (2. Translation - Building the protein in the ribosomes)
What are chromosomes? Chromosomes are sets of genes. Sex cells have 23 single chromosomes, other cells have 2 sets, 23 pairs.
What is DNA? Stands for deoxyribo-nucleic acid. All cells except red blood cells have DNA in their nuclei.
What are genes? Genes are sections of DNA and contain the instructions for making the proteins you are made of. DNA make up the words, genes are the sentences.
What are alleles? Alleles are the genes that you enherit from you mom and dad. (Dominant and Recessive)
Can one single gene determine characteristics like intellegence, fitness and sexuality? No, because no single gene controls complex characteristics.
How would you describe the relationship between the length and resistance in a wire? Proportional. They change together. Increased length = increased resistance. Y = X
How would you describe the relationship between the cross-sectional area and resistance in a wire? Inversely proportional. If area increases, resistance decreases. Y = 1/X
What is the formula for resistance? R = (RHO) x L -------------- Area
What is RHO? The resistivity and a material property. The lower the RHO the better the conducter. Very high resistivity mean it is a very bad conducter.
What is the formula for voltage? V = I x R
With what formula can you calculate the resistance? R = V / I
What is voltage? Voltage is the potential difference between two points in the wire.
What is current? The flow of particles in the wire.
What is mitosis? Cell division, creating a complete copy.
What is meiosis? Cell division in the sex cells, creating a random reshuffeling.
What is the shape of DNA called? Double helix.
How does DNA fit inside a chromosome? First there is the double helix. Then the double helix is wrapped around proteins. Then the proteins are packed tightly, forming a chromosome.
Created by: Me.blandhol
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