Term
| What is it called when 2 sex cells, usually an egg and a sperm, come together? |
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Definition
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Term
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Definition
| the joining of an egg and a sperm, generally from 2 different organisms of the same species |
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Term
| What are formed in the male reproductive organs? |
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Definition
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Term
| What are formed in the female reproductive organs? |
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Definition
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Term
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Definition
| a cell that forms from fertilization |
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Term
| What happens after ferilization? |
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Definition
| cell division begins and a new organism developes |
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Term
| Why are human body cells diploid? |
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Definition
| because they have 23 pairs of similar chromosomes |
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Term
| Are human sex cells haploid or diploid? |
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Definition
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Term
| Why are human sex cells haploid? |
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Definition
| because they have 23 single chromosomes |
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Term
| What is a process that produces haploid sex cells and ensures that offspring have the sam diploid number as its parents |
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Definition
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Term
| What is a chemical that contains information that an organism needs to grow and function? |
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Definition
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Term
| When did Watson and Crick make an accurate model of DNA? |
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Definition
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Term
| What is a the structure of DNA similar to? |
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Definition
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Term
| What are sections of DNA on a chromosome? |
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Definition
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Term
| Genes contain instructions for making proteins from the nucleus to the ribosome which is where? |
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Definition
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Term
| What brings amino acids to the ribosomes to build the protein? |
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Definition
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Term
| Where does Ribosomal NA make up ribosomes? |
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Definition
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Term
| Cells use only the genes that do what in the making of proteins needed by that cell? |
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Definition
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Term
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Definition
| any permanent change in the DNA sequence of a cell's genes or chromosomes |
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Term
| What are 3 things that can be caused by outside factors? |
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Definition
-X rays
-sunlight
-some chemicals |
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Term
| What happens if a change in a gene or chromosome occurs? |
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Definition
| it can change the the traits of an organism |
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