Term
| Who proposed the theory of Spontaneous Generation? |
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Definition
Aristotle
believed that life came from the air out of nothing, which was disproved by Louis Pastuer |
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Term
| What trait is coded by a series of genes all on different chromosomes, this is called what? |
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Definition
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Term
| With complete dominance and monohybrid cross, what will the phenotype and genotype ratios be in the F2? |
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Definition
Phenotype- 3:1
Genotype- 1:2:1 |
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Term
| If two traits are linked, what does this mean? |
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Definition
| The two genes or traits are located on the same chromosome, these are not free to recombine, but are stuck together. This results in fewer combinations, like "R" cannot have "t" on the same chromosome (Unless crossing over occurs.) |
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Term
| In a linkage cross, unexpected phenotypes are the result of what? |
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Definition
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Term
| Two cells that formed from the result of mitosis have how many chromosomes relative to the starting cell? |
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Definition
| The process of mitosis is to replicate what is there, so the result cell will have the same number of chromosomes as the starting cell. |
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Term
| If a trait is passed from father to son then to his son, the gene is located on which chromosome? |
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Definition
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Term
| Who proposed the laws of genetics? |
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Definition
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Term
| What would the genotype plus the environmental forces produce? |
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Definition
| Phenotype (the actual appearance of the organism) |
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Term
| What is the difference between a trait which is allelic and one that is nonalleliic? |
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Definition
| Allelic traits are genes located on homologous chromosomes, nonallelic traits are located on different chromosomes (non homologous) |
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Term
| Assume dark color is dominant over light. If you cross two dark animals of unknown parentage, what would the offspring be colored? |
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Definition
| The offspring could be dark or light, there is not enough information to determine. |
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Term
| Who is known for his work on sex inheritance and fruit flies? |
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Definition
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Term
| If two alleles are the same, this is called what? |
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Definition
| Homozygous (homo = same; zygous = two genes) |
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Term
| If two alleles are different, this is called what? |
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Definition
| Heterozygous (hetero = different; zygous = two genes) |
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Term
| Where in the organism does meiosis occur? |
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Definition
| In animals, the gonadal tissues, ovaries and testes, in plants innt he ovary and stamen |
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Term
| What is the first law of genetics? |
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Definition
| Genes will segregate from each other and end up in separate gametes. Demonstrated by any monohybrid cross |
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Term
| What does the law of independent assortment refer to? |
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Definition
| Non alleles will separate independently from each other to end up one of each kind in a gamete. Non alleles are genes which are not coding for the same trait, such as a gene for height and gene for blood type |
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Term
| In a dihybrid cross with complete dominance, what would the F1 phenotype ratio be? |
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Definition
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Term
| If a genetic cross produced 9/16 red tall, 3/16 red short 3/16 white tall and 1/16 white short, what was the hybrid cross (F1)? |
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Definition
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Term
| In the symbolism of "Aa", what does the "a" usually indicate? |
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Definition
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Term
| If the genotype is AaBb what would all the gamete combinations be? |
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Definition
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Term
| Who developed his own theory of evolution, just as Darwin was getting ready to publish? |
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Definition
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Term
| Give the genotype of a heterozygous dark body (D) sex-linked white eye male (w) |
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Definition
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Term
| With a backcross a heterozygous individual times homozygous recessive individual, what will the resulting phenotype ratio would be? |
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Definition
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Term
| In protein synthesis, where does transcription and translation occur? |
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Definition
Transcription (messenger RNA copies the sequence of DNA) occurs in the nucleus
Translation (messenger RNA sequences Transfer RNA so that the amino acids are joined in the proper sequences) occurs int he cytoplasm (outside the nucleus) |
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