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| What was the most significant result Gregor Mendel drew from his experiments with pea plants? |
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Definition
| Traits are inherited in discrete units and are not the results of blending |
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Term
| It was important to Mendel's success with his monohybrid crosses, that he did ALL of the following EXCEPT which? |
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Definition
| He demonstrated that the same patterns of inheritance were present in all agricultural plants |
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Term
| Gregor Mendel was able to arrive at his model of genes by: |
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Definition
| c. his mathematical analysis of the outcome of cross-breeding experiments |
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Term
| If one tosses a coin twice, what is the probably of getting two heads? Two tails? One of each? |
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Definition
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Term
| Heterozygotes of axial flowering plant and terminally flowering plant are axial. An axial plant of unknown genotype is crossed with a terminally flowering plant. The results are 107 axial and 115 terminal. Therefore the unknown genotype is: |
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Definition
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| As stated in class, the F1 offspring of a blue, tall, fuzzy-fingered tribble and a yellow, short, smooth-fingered tribble are blue, short, and fuzzy-fingered. If two F1's are crossed, what is the probability of a blue, short, smooth-fingered tribble? |
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Term
| Betty's blood type is AB. Such a blood type is a good example of: |
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Definition
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Term
| Like other urea cycle disorders, ornithine transcarbamylase deficiency affects the body's ability to get rid of ammonia, a toxic breakdown product of the body's use of protein. Mutations in the OTC gene cause ornithine transcarbamylase deficiency. Ornithine transcarbamylase deficiency is an X-linked recessive disorder caused by a number of different mutations. It will be more frequent in |
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Definition
| a. males whose mother is a carrier |
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Term
| The surprising thing about Morgan's F2 fruit flies was: |
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Definition
| . the white-eyed flies were all males |
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Term
| Sperm and ova are considered to be |
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Definition
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Term
| Darwin was the greatest biologist of the 19th century, but he sure misunderstood genetics, which he believed was due to "blending inheritance." This is the belief that: |
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Definition
| d. the hereditary traits of both parents blend in the offspring, like two differently colored inks. |
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Term
| One of Mendel's experiments was "tall stem length" crossed with "dwarf stem length." The F1 were all tall. Of 1064 F2 plants, 787 were tall and 277 were dwarf. What would be the genotype of the F1 plants? (Not the F2!) |
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Definition
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Term
| In one experiment, Mendel crossed a pea plant that produced only green pods with one that produced only yellow pods. Then he crossed the green-pod F1 plants. What were his approximate F2 results? |
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Definition
| 3/4 green pod, 1/4 yellow pod |
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Term
| Heterozygotes of inflated pod and constricted pod are inflated. An inflated pod plant of unknown genotype is crossed with a constricted pod plant. The results are 107 inflated and 115 constricted. Therefore the unknown genotype is: |
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Definition
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Term
| When analyzing a dihybrid cross (or higher) what Mendelian law(s) is/are one using? |
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Definition
| Laws of segregation and independent assortment |
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Term
| Sue and Pete have blood types A and AB respectively. Which of the following is an impossible blood type for their offspring? |
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Term
| A couple who are both carriers of the gene for cystic fibrosis has two children who have cystic fibrosis. What is the probability that their next child will have cystic fibrosis? |
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Definition
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Term
| Historically, what was the first gene to be located on a specific chromosome? |
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Definition
| d. the white-eye gene of Drosophila, located on the X chromosome |
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Term
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Definition
| they have a Y chromosome that contains the male-determining gene testosterone-stimulating gene |
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Term
| Darwin was the greatest biologist of the 19th century, but he sure misunderstood genetics, which he believed was due to "blending inheritance." This is the belief that: |
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Definition
| the hereditary traits of both parents blend in the offspring, like two differently colored inks. |
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Term
| It was important to Mendel's success with his monohybrid crosses, that he did ALL of the following EXCEPT which? |
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Definition
| He demonstrated that the same patterns of inheritance were present in all agricultural plants |
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Term
| Mendel crossed true-breeding green-pod plants and yellow-pod plants. Why did he call green dominant? |
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Definition
| because the F1 offspring were green |
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Term
| Here is a tetrahybrid cross. FfQqTtYY x FfqqTtyy. What is the probability of an offspring of genotype FfqqTTYy? |
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Definition
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Term
If Sue is type A blood type and Ed is type B blood type, then their children would have to be:
Choose one answer. |
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Definition
| . type A, or type B, or type AB, or type O |
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Term
| Your sister moves away and gives you her purebred Labrador retriever, a female named Dandelion. When you decide to breed Dandelion and sell the puppies to help pay for your tuition, you learn that two of Dandelion's four sisters have developed a hip disorder that is traceable to the action of a single recessive gene. Dandelion herself shows no sign of the disorder. If you breed Dandelion to a male Labrador that does not carry the recessive allele, (i) can you guarantee to a purchaser that the resulting puppies will also be free of the condition? (ii) Can you guarantee that they will be free of the allele? |
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Definition
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Term
| In human beings, a sex-linked gene usually lies on the ___ chromosome. |
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Definition
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Term
| What was the most significant result Gregor Mendel drew from his experiments with pea plants? |
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Definition
| Traits are inherited in discrete units and are not the results of blending |
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Term
| Gregor Mendel was able to arrive at his model of genes by |
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Definition
| his mathematical analysis of the outcome of cross-breeding experiments |
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Term
| White and purple flowers are examples of |
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Definition
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Term
| The data that led Mendel to his Law of Segregation was: |
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Definition
| his F2 monohybrids showed a 3:1 ratio in their phenotypes |
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Term
| Here is a tetrahybrid cross. FfQqTtYY x FfqqTtyy. What is the probability of an offspring of genotype FfqqTTYY? |
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Definition
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Term
| A woman has six sons. The chance that her next child will be a daughter is |
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