Campbell Essential Biology (7th Edition)
7th Edition
ISBN: 9780134765037
Author: Eric J. Simon, Jean L. Dickey, Jane B. Reece
Publisher: PEARSON
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Chapter 9, Problem 6SQ
Summary Introduction
Introduction:
The phenomenon of incomplete dominance is observed in a cross of a white hen and a black rooster in which both the alleles of white color and black color exhibit their
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Based on the allelic gene interaction in Australian milking shorthorn cattle breeds, the mating of a red cattle (RR) and white cattle is depicted in the picture below. What is gene interaction involved in this resulting coat color of the offspring? see photo attached
a. Complete dominance
b. Incomplete dominance
c. Codominance
d. Additive gene action
All of the offspring of a red carnation crossed with a white carnation are pink. The simplest explanation for this pattern of inheritance is:
a.
environmental effects
b.
multiple alleles
c.
codominance
d.
incomplete dominance
e.
sex-linkage
The snapdragon flower in Tennessee and Alabama are both white. When these two strains of snapdragon were crossed, the resulting F1 produces purple-color flower. When the F1 was self-crossed, the F2 progeny were 540 purple and 420 white.
16. What kind of inheritance pattern is this?
A. recessive epistasis
B. complete dominance
C. dominant epistasis
D. codominance
E. complementation
Chapter 9 Solutions
Campbell Essential Biology (7th Edition)
Ch. 9 - The genetic makeup of an organism is called its...Ch. 9 - Which of Mendels laws is represented by each...Ch. 9 - Edward was found to be heterozygous (Ss) for the...Ch. 9 - Whether an allele is dominant or recessive depends...Ch. 9 - Prob. 5SQCh. 9 - Prob. 6SQCh. 9 - Prob. 7SQCh. 9 - Prob. 8SQCh. 9 - Adult height in people is at least partially...Ch. 9 - A purebred brown mouse is repeatedly mated with a...
Ch. 9 - How could you determine the genotype of one of the...Ch. 9 - Tim and Jan have freckles (a dominant trait), but...Ch. 9 - Incomplete dominance is seen in the inheritance of...Ch. 9 - Why was Henry VIII wrong to blame his wives for...Ch. 9 - Both parents of a boy arc phenotypically normal,...Ch. 9 - Heather was surprised to discover that she...Ch. 9 - Prob. 17SQCh. 9 - Prob. 18IMTCh. 9 - Prob. 19IMTCh. 9 - For each pair of your homologous chromosomes, one...Ch. 9 - In 1981, a stray cat with unusual curled-back ears...Ch. 9 - Interpreting Data As shown in the Punnett square...Ch. 9 - There are now nearly 200 recognized breeds of dog,...Ch. 9 - Gregor Mendel never saw a gene, yet he concluded...Ch. 9 - Prob. 25BS
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- When a plant with red flowers is crossed with a plant with white flowers, the F1 generation consists of a plant with pink flowers. This is an example of which of the following modes of inheritance? A. multiple alleles B. incomplete dominance C. codominance D. complete dominancearrow_forwardWhich of the following is indicated by roman numerals in a pedigree? a.Presence of the studied trait b.Generation c.Sex d.Marriage status Which of the following disorders in humans has an autosomal dominant inheritance pattern? a.Albinism b.Hemophilia c.Tay-Sachs disease d.Huntington’s disease For an X-linked recessive allele, what proportion of female offspring will be carriers in the cross of an affected father and a noncarrying mother? a.50 percent b.0 percent c.100 percentarrow_forwardAchondroplasia is a form of dwarfism caused by a mutation in a single gene. Two individuals with achondroplasia marry and have an affected child and later have a second child that is average in height.From this you can conclude Select one: a. achondroplasia is a result of codominance b. achondroplasia is produced by a recessive allele c. achondroplasia is a result of incomplete dominance d. achondroplasia is produced by a dominant allelearrow_forward
- In tomatoes, red fruit (R) is dominant over yellow fruit (r). Five generations of red tomato plants were crossed to each other without producing any yellow tomato plants. It can be hypothesized that the red tomato plant must be Select one: a. Homozygous b. Recessive c. Dominant d. Heterozygousarrow_forwardWhich of the following CANNOT be true about the inheriteance the trait depicted in the pedigree diagram below? A. It is recessive B. It is dominant C. It is on the X chromosome D. It is recessive, and it is on the X chromosomearrow_forwardChoose the statement that is incorrect.a. A son can inherit a recessive allele on anX chromosome from either parent.b. An individual may inherit three or more of eachtype of chromosome characteristic of the species, acondition called polyploidy.c. A female child inherits one X chromosome from hermother and one from her father.d. Pedigree analysis can be used to determine a futurechild’s chance of being born with achondroplasiaarrow_forward
- Which of the following must be true about the inheritance the trait depicted in the pedigree diagram below. A. it is recessive B. It is dominant C. It is on the X chromosome D. There is not enough information to determine the mechanism of inheritancearrow_forwardA gardener pertorms a mononybra cross on two heterozygous orange-fruitea tomato plants. Plants expressing the recessive phenotype yield yellow tomato fruits. What percentage of the offspring will produce yellow tomatoes? A:75% B:50% C:100% D:25%arrow_forwardA cross occurs between a chicken with white feathers and a chicken with black feathers. This results with offspring with some black feathers and some white feathers. What type of inheritance is this? a. incomplete dominance b. complete dominance c. codominance d. blended dominancearrow_forward
- In a test cross, peas of an unknown genotype are crossed with peas of a known genotype. In this example, smooth peas are the unknown and wrinkled peas are the known (rr). If half of the offspring from that cross are smooth and half are wrinkled, what is the genotype of the unknown plant? O a. Homozygous dominant: RR O b. Homozygous recessive: rr Oc. Incomplete dominance d. Heterozygous dominant: Rr CLEAR MY CHOICEarrow_forwardRabbits may be classified as agouti, chinchilla, Himalayan, or albino according to coat color. A crossbetween CC^h x C^ch c produced 5 agouti, 3 chinchilla and 2 Himalayans. a. What are the phenotypes of the parent rabbits? b. What are the genotypes of the F1s? c. What mode of inheritance is exhibited? d. If the two F1 agouti genotypes will be crossed, what percentage of their offspring will have the same phenotype? e. What will be the genotypes of the rabbits in (d)?arrow_forwardWhen many genes affect a single phenotype is it called; a. extranuclear inheritance b. pleiotropy c. dominance d. genotype by environment interaction e. epistasisarrow_forward
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