Campbell Biology: Concepts and Connections
10th Edition
ISBN: 9780135269169
Author: Taylor
Publisher: PEARSON
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Chapter 9, Problem 17TYK
SCIENTIFIC THINKING The breakthrough that led Bateson and Punnett to recognize the existence of linked genes (Module 9.17) was the appearance of unexpected results after they crossed double heterozygous pea plants (PpLI) with each other. Imagine that you have a group of Labrador retrievers that are all heterozygous for both coat color and blindness (BbNn). If you used this group of dogs to produce 160 puppies, how many puppies of each
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Chapter 9 Solutions
Campbell Biology: Concepts and Connections
Ch. 9 - Connecting the Concepts 1. Complete this concept...Ch. 9 - Whether an allele is dominant or recessive depends...Ch. 9 - Edward was found to be heterozygous (Ss) for...Ch. 9 - Two fruit flies with eyes of the usual red color...Ch. 9 - A man with type B blood and a woman who has type A...Ch. 9 - Tim and Jan both have freckles (see Module 9.9),...Ch. 9 - Both Tim and Jan (problem 6) have a widows peak...Ch. 9 - In rabbits, black hair depends on a dominant...Ch. 9 - A fruit fly with a gray body and red eyes...Ch. 9 - A series of matings shows that the recombination...
Ch. 9 - A couple are both phenotypically normal, but their...Ch. 9 - Why do more men than women have colorblindness?Ch. 9 - In fruit flies, the genes for wing shape and body...Ch. 9 - Adult height in humans is at least partially...Ch. 9 - Heather was surprised to discover she suffered...Ch. 9 - In 1981, a stray black cat with unusual rounded,...Ch. 9 - SCIENTIFIC THINKING The breakthrough that led...
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- Hi im having some trouble with this question, if someone could help solve these with an explanation it would be very helpful! In cats, a gene on the X chromosome (X-linked) makes the protein amelogenin, which helps direct the formation of tooth enamel. A mutation in an amelogenin allele changes the amino acid sequence of the protein and can cause a condition called amelogenesis imperfecta, leading to defects in a cat’s tooth enamel. In one type of amelogenesis imperfecta in cats, the allele associated with the condition, a, acts in a recessive manner. Its dominant counterpart, A, results in normal levels of amelogenin. Additionally, the dominant allele H at an autosomal locus that regulates the expression of the protein Sonic Hedgehog is responsible for polydactyly (the presence of extra digits on each foot, “double paws”) and the expression of its recessive counterpart h results in the absence of polydactyly (having the 5 digits per front paw, and 4 digits per hind paw). A female cat…arrow_forwardWhat was the hypothesis of the X-linked cross conducted in the lab (between white-eyed female and re-eyed male) with the white mutation in Drosophila and written up in your lab report? A All female offspring will inherit red eyes from their mother because the mutation is X linked recessi B All female offspring will inherit white eyes from their mother because the mutation is X linked recessive. C All male offspring will inherit white eyes from their mother because the mutation is X linked recessive. D All male offspring will inherit red eyes from their mother because the mutation is X linked recessive. E All male offspring will inherit white eyes from their mother because the mutation is X linked dominant.arrow_forwardin a summary use your understanding of molecular biology to explain that recessive alleles are expressed through transcription and translation, and that they may have functional gene products. Describe how the interaction of the products produced by each allele results in what we see as dominant or recessive traits.arrow_forward
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- Biologyarrow_forwardSuppose Jonathan breeds flowers and wants to optimize production of offspring with both short stems and white flowers, which are coded for by two genes with the recessive alleles t and p, respectively. In flowers, T codes for tall stems and P codes for purple flowers. Jonathan crosses two heterozygotes that produce 544544 offspring. How many of these 544544 offspring are predicted to have both short stems and white flowers? please help solve and please explain thank youarrow_forwardChoose one plsarrow_forward
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