Biology: Life on Earth with Physiology Plus Mastering Biology with Pearson eText -- Access Card Package (11th Edition)
11th Edition
ISBN: 9780133910605
Author: Gerald Audesirk, Teresa Audesirk, Bruce E. Byers
Publisher: PEARSON
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Chapter 10.5, Problem 1CSR
Summary Introduction
To describe:
Whether the risk of skin cancer is selected against pale-skinned to balance selection in favor of pale skin for production of vitamin D.
Introduction:
Cancer can be defined as a group of diseases which are characterized by abnormal growth of cells. These cells have the ability to invade and spread to other tissues present in the body. Skin cancer is one of the most common types of cancer.
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Students have asked these similar questions
Human hair color ranges from black to many shades of brown to blonde. What can you correctly conclude from this information?
A Human hair color is controlled by a single gene.
B Human hair color is controlled by environmental factors rather than genes.
C Human hair color is controlled by more than one gene.
D Black hair is dominant to blonde hair.
Answer is C? Can you help me to explain to me step by step?
Most sheep have the ability to grow coats of wool that vary in their thickness depending on the
ambient temperatures that they experience. This is an aspect of phenotypic plasticity, variability in
the phenotype that can be triggered by the experiences of the organism. When referring to a
sheep that has grown more wool in a cold climate than its parents living in a warm one, what term
best describes this? (NOTE: look back at chapter 25, if you are having trouble remembering)
O Adaptation
Intersexual selection
Intrasexual selection
Acclimitization
Gene Fixation
Selective breeding of a wild plant produced three different vegetable plants; broccoli,
cabbage, and cauliflower plants. How do these three differ from each other
genetically?
They have different genes.
They have the same alleles but express different proteins.
They have the same genes but contain a different collection of alleles.
Chapter 10 Solutions
Biology: Life on Earth with Physiology Plus Mastering Biology with Pearson eText -- Access Card Package (11th Edition)
Ch. 10.1 - The Rainbow Connection The genetic variability or...Ch. 10.1 - Prob. 1CYLCh. 10.1 - Prob. 2CYLCh. 10.1 - Prob. 3CYLCh. 10.2 - The Rainbow Connection As Tess and Chris Giddings...Ch. 10.2 - describe the steps and outcome of meiotic cell...Ch. 10.2 - Prob. 1HYEWCh. 10.2 - What would be the consequences for the resulting...Ch. 10.2 - Prob. 2CYLCh. 10.2 - What would be the genetic consequences for the...
Ch. 10.2 - Prob. 3TCCh. 10.3 - explain how meiosis and sexual reproduction...Ch. 10.4 - compare and contrast the three main types of...Ch. 10.5 - Prob. 1CSRCh. 10.5 - Prob. 1CTCh. 10.5 - Prob. 1CYLCh. 10.5 - describe some of the human genetic disorders that...Ch. 10 - Many plants car. reproduce sexually or asexually....Ch. 10 - Meiotic cell division produces ________ (how many)...Ch. 10 - Pairs of chromosomes with almost identical genetic...Ch. 10 - Prob. 1RQCh. 10 - Prob. 2FIBCh. 10 - Prob. 2MCCh. 10 - Prob. 2RQCh. 10 - Prob. 3FIBCh. 10 - Prob. 3MCCh. 10 - Prob. 3RQCh. 10 - Prob. 4FIBCh. 10 - Prob. 4MCCh. 10 - Diagram and describe the three main types of...Ch. 10 - Prob. 5FIBCh. 10 - Prob. 5MCCh. 10 - Describe how meiosis provides for genetic...Ch. 10 - Define nondisjunction, and describe common...
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- Several loci affect hair development in dogs. The allele for wire hair (W) is dominant to Its allele for straight hair (w). Allow H to represent hairlessness in the Mexican hairless dog and its recessive allele h to represent the gene for typical hair growth in other breeds. The Mexican hairless dog is homozygous for straight hair, but because of epistatic effects of H, alleles for hair formation cannot be expressed. Write genotypes of the following animals with respect to the two loci mentioned. a.) a Mexican hairless dog b.) a dog with straight hair c.) a dog from a strain that is pure breeding for wire hair.arrow_forwardimagine that you finally solved the mystery of the color pattern of zebras. One gene defines the color of the fur, with two alleles for two colors: black (B) and white (b). Both alleles are co-dominant. Another gene regulates the expression of the color through epistasis. You name the two alleles for this regulator gene G and g. The dominant allele G is necessary for the fur color (white is considered a color) to be produced. The recessive g allele does not allow fur color expression. Zebra with no fur color expression appear green. You breed two double heterozygous zebras. A)What do these double heterozygotes look like?______________________ B) Fill the Punnett square and provide the predicted proportion of zebras of different colors from that cross.... The colors obtained are the following (include expected ratio or percentage): C)Naturally, there are no green zebras. Propose a genetic explanation for this lack of green zebras? Answer:arrow_forwardFigure illustrates albinism in two different species. Describetwo other genetic disorders found in both humans and animals.arrow_forward
- The L gene in cats controls if they like to sit on your laptop (L) or on the book you are reading (I). L is dominant to I. The F gene controls how much fur cats shed. FF cats shed a lot, Ff cats some, and ff cats shed a little. The C gene controls how sharp their claws are: C is sharp, which is dominant to c. But it is a bit more complicated... Because the R gene controls how well they can retract their claws. rr cats cannot retract their claws, and thus, they are always touching the ground and are never sharp. Only RR or Rr cats have a possibility of sharp claws. The A gene is useful when cats are angry. AA cats growl. aa cats hiss. Aa cats growl and hiss. All of these genes are unlinked. These cats mate: Dad: LI Ff Cc Rr Aa Mom: II Ff Cc rr aa a) Which gene acts co-dominantly? b) Which gene acts partially/incompletely dominantly? c) How many types of gametes can each parent make? Show work. d) LIST all the gametes the mom cat can make. What fraction of the kittens (SHOW WORK for EACH…arrow_forwardAt least two pairs of genes control eye color. Both pairs influence the production of the pigment, melanin, but act independently. One pair of alleles is B (Brown color; dominant) and b (blue color); the other pair is A (pigment production; dominant) and a (no pigment production; albino). The gene pair aais epistatic to (masks) B and b and produces the nonpigmented eyes of the albino. What is the typeof gene interaction that exists between the two gene pairs? Give the genotypes and phenotypes of the possible offspring of the mating bbAa x Bbaa andi ndicate the parental phenotypes. (any method)arrow_forwardSkin colour in humans is determined by more than one gene pair, whereas Rh factor in blood is controlled by one gene pair. Which would show more variability in the human population? Why?arrow_forward
- Colorblindness is an X-linked recessive trait. You observe an isolated population and find that 20 females have the recessive colorblind phenotype, while the remaining 180 females do not. How many males would you expect to have this trait? show full work.arrow_forwardGenotypes and Phenotypes I have gap teeth, but my husband doesn't. How do I explain how my children got gap teeth just like me, using Genotypes and Phenotypesarrow_forwardThe agouti gene determines coat colour in mice. Heterozygous mice have yellow coats, while homozygous dominant mice have black coats. However, having two copies of the recessive alleles is lethal. In a population of 2 000 mice, 1 082 mice have black coats. a) Calculate the frequency of each allele. Show all your work and express your answer as a value between 0 and 1 rounded to two decimal places. b) What percentage of the mouse population is expected to be carriers of the lethal allele? Show all your work and express your answer rounded to one decimal place. c) How many mice will die during fetal development? Show all your work and round your answer to the closest whole number.arrow_forward
- Choose one plsarrow_forwardIn a large population, dairy cows were selected for high milk production. What do you expect to happen with the genes affecting milk production? Do you expect to see a higher or lower variability of alleles after several years of selection?arrow_forwardChoose one plsarrow_forward
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