Term
| Define: Catabolic Reaction |
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Definition
Reactions in cells in which existing chemical bonds are broken and molecules are broken down; generally produce energy, involve oxidation, and lead to a decrease in atomic order.
E.g Break down of Glucose in Respiration. |
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Term
| Define: Polycistronic mRNA |
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Definition
| Describes mRNA molecules that contain several open reading frames and can thus code for several polypeptide proteins at the one time. These are only found in prokaryotes. |
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Term
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Definition
| Small Nuclear Ribonucleoproteins that combine with other proteins to form spliceosomes. These remove introns from pre-mRNA and only occur in the nucleus of Eukaryotic cells. |
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Term
| What are the conditions of Natural Selection? |
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Definition
1.Reproduction. Need to be abe to produce a new generation.
2. Heredity. The offspring must tend to resemble their parents.
3. Variation in characteristics of the members of the population.
4. Variations in fitness of organisms associated with these characteristics. |
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Term
| What are Mendels' Four Laws? |
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Definition
1. Law of Particulate Inheritance
2. Law of Dominance (at least two alleles for a trait)
3. Law of Segregation (Gametes only get one of each allele)
4. Law of Independent assortment |
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