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Ch. 5 - Heredity
Life Science Ch. 5 Heredity Review
| Question | Answer |
|---|---|
| Passing of traits from one generation to another... | Heredity |
| Different forms of the same gene... | Alleles |
| Study of how alleles affect offspring... | Genetics |
| An allele inherited on a sex chromosome... | Sex-linked Gene |
| A trait that is hidden... | Recessive |
| The chance that an event will take place... | Probability |
| Genetic makeup of an organism... | Genotype |
| Organism with two alleles that are the same... | Homozygous |
| Physical appearance resulting from the genotype... | Phenotype |
| Both alleles are expressed in offspring... | Incomplete Dominance |
| More than one set of genes controls a trait... | Polygenic Inheritance |
| Chart showing the location of genes on each chromosome... | Genome |
| In a punnett square, a capital letter stands for a ___________ allele | Dominant |
| The combination of Tt represents a ___________ genotype | Heterozygous |
| Experiments with four o'clock flowers produced examples of ___________ dominance | Incomplete |
| Blood type is an example of ___________ | Multiple Alleles |
| Sickle-cell anemia is an example of ___________ | A Genetic Disorder |
| Hemophilia results from an allele that is ___________ | X-Linked |
| Genetic Engineering has already helped people by ___________ | Producing Medicine |
| Mapping all the genes on human chromosomes may help ___________ | Prevent Inherited Disorders |
| (T/F) Genes control the traits that show up in an organism | T |
| (T/F) Genes are never inherited by some people | F |
| (T/F) Gregor Mendel is the Father of Genetics | T |
| (T/F) Gregor Mendel arrived at his conclusion by accident | F |
| (T/F) Gregor Mendel Changed the thinking of scientists of his day | F |
| (T/F) Gregor Mendel determined the basic laws of genetics | T |
| (T/F) A punnett square is used to predict results in genetics. | T |
| (T/F) A punnett square uses numbers to represent the offspring of two or more parents | F |
| (T/F) Alleles are forms of a gene | T |
| (T/F) Alleles are the subject of genetics | T |
| (T/F) Alleles for a trait from both parents are found in one sex cell | F |
| (T/F) A genotype of an organism is a polygenic trait | F |
| (T/F) A genotype of an organism determines the phenotype | T |
| (T/F) A recessive factor can seem to disappear in a generation of organisms | T |
| (T/F) A recessive factor is represented by a capitol letter in a punnett square | F |
| (T/F) An organism that is heterozygous for a trait has two different alleles for that trait | T |
| When both alleles of a gene are expressed in the offspring, the condition is called... | Incomplete Dominance |
| Because alleles A and B for blood type are inherited by incomplete dominance, a person with genotype AB would have the phenotype... | AB |
| (Polygenic or Multiple Allele)A group of genes acts together to produce a single trait... | Polygenic |
| (Polygenic or Multiple Allele)One trait is controlled by more than two alleles of a gene... | Multiple Allele |
| (Polygenic or Multiple Allele)There are three alleles for human blood type... | Multiple Allele |
| (Polygenic or Multiple Allele)Up to 6 genes may control the color of human skin... | Polygenic |
| (Polygenic or Multiple Allele)The effect of a single allele may be small, but the combination of alleles from many genes produces a wide variety in a trait... | Polygenic |
| (Polygenic or Multiple Allele)Human traits such as eye and hair color, height, and weight are controlled by two or more gene pairs... | Polygenic |
| Some ________________ or alterations in DNA, have resulted in genetic disorders | Mutations |
| The inherited disease in which red blood cells are sickled-shaped instead of disc-shaped is called ________________ | Sickle Cell Anemia |
| Sickle-shaped cells cannot carry enough ________________ for the body | Oxygen |
| In cystic fibrosis, a thick ________________ affects the lungs and digestive system | Mucus |
| The disease in which blood does not clot properly and puts the affected person in danger of bleeding to death from even a small scrape is called ________________ | Hemophilia |
| A heterozygous individual who has one allele for a disease but is not affected by it is a ________________ | Carrier |
| Scientists use a chart called a ________________ to study the inheritance pattern of a trait | Pedigree |
| The branch of science in which scientists change genes is called ________________ | Genetic Engineering |
| Sickle cell anemia and cystic fibrosis are caused by ________ alleles | Recessive |
| A person who is heterozygous for a disorder caused by a homozygous recessive allele combination ________________ be affected by the disorder | Will Not Be |
| In order to be affected by hemophilia or color blindness, a male must inherit ________________ for the disease | One Allele |
| Males are affected by sex-linked genetic disorders ________________ than girls | More Often |
| A male has ________________ in his cells | An X and Y Chromosome |
| A female has ________________ in her cells | Two X Chromosomes |
| There are ________________ alleles that code for the human blood type | 3 |
| The A and B alleles, when together, are called ________________ because neither one dominates or covers up the other. | Codominant |
Created by:
SavannahElkins
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