| A | B |
|---|
| Units of heredity are called | traits or genes |
| What do you call an organisms genetic pair for a trait if they are the same? | Dominant alleles |
| If you cross breed two plants that have dominant gene pairs, and the offspring are a blend of the genes, what type of dominance is this? | codominance |
| If an organisms genotype has a dominatn and recessive gene, is this an example of dominant, recessive or hybrid pair | hybrid pair |
| The physical or visible traits of an organism are referred to as its | phenotype |
| In Tt, what do you refer to the T as (Dominant or Recessive) | Dominant |
| If you have Pp, is this an example of genotype or phenotype? | Genotype |
| The passing of traits from parent to offspring. | heredity |
| Who is the father of genetics | Gregory Mendel |
| If you cross bred 2 true breeding white haired mice, what color of hair would the offspring have? | White |
| If a plant has green seeds, and the genotype is Gg what gene would stand for green? | Capital G |
| If B stands for Brown hair, and b is Blonde hair, wwrite the hybrid genotype for brown hair | Bb |
| If B stands for Brown hair, and b is Blonde hair, what genotype would you need for Blonde hair? | bb |
| If the gene for tallness mask the genes for shortness, the tallness genes would be dominant or reccessive? | Dominant |
| What is the male part of a flower? | stamen |
| What is the female part of a flower? | pistill |
| The symbol for a dominant trait is a __________ letter. | Capital |
| The symbol for a recessive trait is a __________ letter. | lower case |
| When pollen from one flower lands on the pistal of the same flower. | Self pollination |
| When pollen is removed from one flower and brushed onto the flower of a second plant. | Cross pollination |
| The law that says just because you have one trait that does not mean you will have another trait is called the law of | independant assortment |
| What type of cells is formed by meiosis | Sex cell |
| Which scientist came up with the chromosome theory | Walter Fleming |
| If an organism is a male, one of it chromosome pairs should be | XY |
| During the the process of meiosis, the number of chromosomes that end up in the sex cells are half or double the number in the original cell | half |
| Genes are made up of | protein |
| X chromosomes are rod or hook shaped | rod |
| The different forms of a gene are referred to as its | alleles |
| If a cat has two dominant allels for Brown eye color (BB), would this be considered heterozygous or homozygous ? | homozygous |
| If a dog has the allele pair of Bb for hair color, is this a homozygous or heterozygous pair | heterozygoud |
| When the gene pair in an organism for a particular trait is netither dominant or recessive, this is referred to as _____________ ( the genes do no blend togethr, but each trait shows up) | codominance |
| If an organism is female, the chromosome pair is XX or YY | XX |
| Who discovered chromosomes? | Walter Fleming |
| Where are chromosomes found in the cell | in the nucleus |
| A grasshopper has 24 chromosomes in each body cell. How many chromosomes woudl be found in a sex cell | 12 |
| When a female and a male grasshopper mte, how many chromosomes woudl be found in the fertilized egg cell? | 24 |
| On what cell part are the genes located | chromosomes |
| What do the genes control the production of? | protein |
| Proteins control | size, shape, and other traits |
| Where does each gene found on a chromosome come from? | mother and father |
| What type of cell does meiosis produce? | sex cell |
| The number of chromosomes in each sex cell is? | 1/2 |
| During meiosis, if the parent cell has 8 chromosomes, how many chromosomes will one sex cell have? | 4 |
| Who was the zoologist that studied genetics using fruit flies | Thomas Hunt Morgan |
| What are the 3 reasons Thomas Morgan chose fruit flies for his experiment? | Easy to raise, produce quickly, and their baby cells have only 4 pair of chromosomes |
| Who discovered that the number of chromosomes in a body cell of a parent always is the same number of chromosomes in the body cell of an offspring. | Walter Sutton |
| Gregor Mendel experimented with thousands of pea plants to understand the process of | genetics |
| The scientific study of heredity | genetics |
| physical characteristics | traits |
| the passing of traits from parents to offspring | heredity |
| The liklihood that an event will occur is | probability |
| Only pea plants that have two recessive alleles for short stems will be short | True |
| Two alleles for short stems | purebred short |
| two alleles for tall stems | purebred tall |
| one allele for tall stems and one allele for short stems | hybrid tall |
| During Mendels time some scientist thought Mendel should be called the Father of Genetics? true or false | false |
| True or False...When you toss a coin 20 times you will always get 10 heads and 10 tails | false |
| A chart that shows all the possible combinations of alleles that can result from a genetic cross is called a | punnett |
| In codominance, the alleles are neither dominant nor recessive. | True |
| In cattle, red hair and white hair are codominant. Cattle with bothe withe harir and red hair are | heterozygous |
| When an organism has the same 2 identical alleles for a trait. (Sometimes they say the organism has purebred genetype) | homozygous |
| A __________ genotype is when the organism hs 2 different allesles fosr a trait. Sometimes this is called a heterozygous pair | hybrid |
| A ____________ allele is an allele whose trait always shows up in the organism | dominant |
| A ____________ allele is an allele whose trait is masked in the presence of a dominant organism. | recessive |
| Who was the botanist that discovered the Law of Incomplete dominance? | Karl Correns |
