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Cubangbang #241727
Cubangbang 6th Ch. 13 Stack2 #241727
Question | Answer |
---|---|
1.traits | charachteristics |
2.genes | a small piece of the DNA that controls the traits of an organism |
3.DNA | the chemical code held by chromosomes that tells the cells what to do |
4.heredity | passing of traits from parents to offspring |
5.genetics | the study of how traits are inherited |
6.purebred plants | an organism that is the offspring of parents having the same genetic makeup |
7.hybrids | plant produced by crossing purebred plants that each have a different form of the same trait |
8.dominant gene | a gene that will always be expressed if it is present in a person’s chromosomes |
9.recessive gene | the gene that is hidden when a dominant gene is present |
10.phenotype | the physical appearance of an organism |
11.genotype | the genetic makeup of an organism |
12. incomplete dominance | the blending of genes together instead of one being dominant while the other is recessive |
13.codominance | the expression of both genes instead of one having recessive while the other is dominant |
14.pedigree | a chart that traces a particular trait through many generations |
15.sex | linked traits |
16.sickle cell anemia | a genetic disorder that causes a person’s blood cells to become hard and curved, like a farmer’s sickle |
17.cystic fibrosis | a genetic disorder that causes thick mucus to clog the lungs and air passages |
18.down syndrome | a genetic disorder usually caused by an extra chromosome |
19.genetic engineering | changing a gene or moving some of one organism’s genes into another organism |
20. punnet square | shows the possible genetic outcomes for offspring and helps determine the probability of those outcomes. |