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Genetics ll test
Question | Answer |
---|---|
What is selective breeding? | -Is a process used by humans to develop new organisms with desirable characteristics. breeders select two parents that have beneficial phenotype traits to reproduce, yielding offspring with those desired traits. |
What is the purpose human genome project? | -Contains 30-35000 genes, identify the DNA sequence of every gene in the human genome, it will provide scientist genetic mutation about humans. |
What is inbreeding? | -Breed from closely related people or animals especially over many generations. |
What is DNA and what is it made of? | - DNA is made up of molecules called nucleotides -adenine (A), thymine (T), guanine (G) and cytosine (C). |
What is a genome? | A genome is all the DNA in one organism. |
What are the male and female sex chromosomes? | XY and XX. |
What is a gene? | A unit of heredity that is transferred from a parent to offspring and is held to determine some characteristic of the offspring. |