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Chapter 5 Heredity
vocabualry for chapter 5
| Question | Answer |
|---|---|
| the passing of traits from parent to offspring | heredity |
| the different forms of a trait that a gene may have | allele |
| the study of how traits are inherited through the interactions of alleles | genetics |
| an offspring that was given different genetic information for a trait from each parent | hybrid |
| describes a trait that covers over, or dominates, another form of that trait | dominant |
| describes a trait that is covered over, or dominated, by another form of the trait and seems to disappear | recessive |
| a tool to predict the probability of certain traits in offspring that shows the different ways alleles can combine | Punnett square |
| an organism's genetic make up | genotype |
| outward physical appearance ard behavior of an organism | phenotype |
| describes an organism with two alleles that are the same for a trait | homzygous |
| describes an organism with two different alleles for a trait | heterozygous |
| production of a phenotype that is intermediate between two homozygous parents | incomplete dominance |
| occurs when a group of gene pairs act together and produces a specific trait, such as human eye color, skin color, or height | polygenic inheritance |
| an allele inherited on a sex chromosome; can cause human genetic disorders such as color blindness and hemophilia | sex-linked gene |
| biological and chemical methods to change the arrangement of a gene's DNA to improve crop production, produce large volumes of medicines, and change how cells perform their normal functions | genetic engineering |
| The four different human blood types | A, B, AB, O |
| How many alleles are there for human blood? | 3 |
| Cystic fibrosis is an example of a __________ ____________ disorder | recessive genetic disorder |
| What is selective breeding? | selecting plants and animals with the most desired traits to be bred for the next generation |
| The father of genetics | Mendel |
| A capital letter in a Punnett square stands for ______ | dominant allele |
| The intermediate form of alleles is expressed in offspring | incomplete dominance |
| A black chicken and a white chicken produce a black speckled chicken. This is an example of _______________________ | codominance |
| A red flower is crossed with a white flower. The offspring are pink. This is an example of ________________. | incomplete dominance |
| when more than two alleles control a trait | multiple alleles |
| A tool for tracing a trait through a family | pedigree chart |
| a tool that uses letters to represent dominant and recessive alleles | Punnett square |
| How many alleles for each trait does a sex cell have | one |
| A baby with two X chromosome is a ___________. | girl |
Created by:
klaud