Lab Exam - Requires Respondus LockDown Browser Started: Oct 13 at 10:31pm Quiz Instructions Grab some paper in case you need to write anything down like the genetics problems. Otherwise, answer the questions using what you have lea "in the lab" this semester. Question 39 An allele that exerts its effects whenever it is present is ? recessive ? Unknown ? heterozygouos ? homologous ? dominant Previous 1 pts Next Not saved
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Step 1: The question asks to identify the type of allele that exerts its effects whenever it is present. Show more…
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Q35: Which of the following statements regarding genetics is true? An organism with two different alleles for a single trait is said to be homozygous for that trait. The expressed physical traits of an organism are called its genotype. The collection of alleles specific to an organism constitutes its genotype. The same gene may be found in different locations of homologous chromosomes. Q36: When pea plants with purple flowers mate with pea plants with white flowers, all of their offspring have purple flowers. What can you conclude about the white flower trait? It is a dominant trait. It is a trait that does not improve the survival of pea plants. It will be less common than the purple flowers. It is a recessive trait. Q37: In a species of organism, there is a gene with 2 possible alleles. One allele will express the dominant trait while the other allele will not. An organism of this species has two of the same allele but does not have the dominant trait. This organism would be considered a non-functional organism. heterozygous. homozygous dominant. homozygous recessive.
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Fill in the Blanks According to Pedigree 2, indicate the genotypes for each individual listed below. For autosomal inheritance patterns, use A for the dominant allele and a for the recessive allele. Normally, X-linked alleles are written as X^A, but since you can't use superscript in your answers, just use X for the dominant allele and x for the recessive allele. Be sure to include Y for the Y chromosome when appropriate. I-1 I-2 II-3 II-4 II-6 II-7 III-7
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1. allele 2. dominant (allele or trait) 3. gene 4. genotype 5. heterozygous 6. homozygous 7. phenotype 8. recessive (allele or trait)
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