Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 12, Problem 10RQ
The observable traits expressed by an organism are described as its.
phenotype - genotype
- alleles
- zygote
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Which of the following is defined as an individual’s observable traits?
Allele
Phenotype
Genotype
Gene
A gene is termed
when one copy is needed for the trait to be expressed
genomic
dominant
recessive
important
For each of the following genotypes state whether you have a homozygous or heterozygous for each trait (you may need to use 2 terms for one genotype).
AaGG
Rrgg
TTGg
Chapter 12 Solutions
Biology 2e
Ch. 12 - Figure 12.5 In pea plants, round peas (R) are...Ch. 12 - Figure 12.6 What are the genotypes of the...Ch. 12 - Figure 12.12 What ratio of offspring would result...Ch. 12 - Figure 12.16 In pea plants, purple flowers (P) are...Ch. 12 - Mendel performed hybridizations by transferring...Ch. 12 - Which is one of the seven characteristics that...Ch. 12 - Imagine you are performing a cross involving seed...Ch. 12 - Consider a cross to investigate the pea pod...Ch. 12 - A scientist pollinates a true-breeding pea plant...Ch. 12 - The observable traits expressed by an organism are...
Ch. 12 - A recessive trait will be observed in individuals...Ch. 12 - If black and white true-breeding mice are mated...Ch. 12 - The ABO blood groups in humans are expressed as...Ch. 12 - In a mating between two individuals that are...Ch. 12 - If the allele encoding polydactyly (six fingers)...Ch. 12 - A farmer raises black and white chickens. To his...Ch. 12 - Assuming no gene linkage, in a dihybrid cross of...Ch. 12 - The forked line and probability methods make use...Ch. 12 - How many different offspring genotypes are...Ch. 12 - Labrador retriever's fur color is controlled by...Ch. 12 - Which of the following situations does not follow...Ch. 12 - Describe one of the reasons why the garden pea was...Ch. 12 - How would you perform a reciprocal cross for the...Ch. 12 - Mendel performs a cross using a true-breeding pea...Ch. 12 - Calculate the probability of selecting a heart or...Ch. 12 - The gene for flower position in pea plants exists...Ch. 12 - Use a Punnett square to predict the offspring in a...Ch. 12 - Can a human male be a carrier of red-green color...Ch. 12 - Why is it more efficient to perform a test cross...Ch. 12 - Use the probability method to calculate the...Ch. 12 - Explain epistatis in terms of its Greek-language...Ch. 12 - In Section 12.3, ''Laws of Inheritance," an...Ch. 12 - People with trisomy 21 develop Down’s syndrome....Ch. 12 - A heterozygous pea plant produces violet flowers...
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- The observable traits expressed by an organism are described as its _______. a. phenotype b. genotype c. alleles d. zygotearrow_forwardProband Sex-linked Brackets Arabic numerals Heterosis ||| E III III E III ||| Depict the birth order in a generation of offspring. The first time the condition being studied is recorded but not necessarily the first time the condition has occurred. Unusual vigor or increased function of an organism in a heterozygous state. Genes located on a sex chromosome result in sexually dependent inheritance of certain traits. Placed around a gender symbol such as a circle or square or diamond to indicate adoption. Open in Reading Varrow_forwardThe statement is true or false "A person having XO karyotype is genotypically a male"?TrueFalsearrow_forward
- Normal healthy humans have (check ALL that apply): Group of answer choices about 24,500 different gene addresses 1 or 2 alleles at each address (depending on whether they're homozygous or heterozygous) 23 pairs of chromosomes in each somatic cell a system in which some genes are dominant over others a system in which dominant genes are always the best ones to havearrow_forwardA man that can roll his tongue is heterozygous for the trait marries a woman that cannot roll her tongue. They have a child. Rolling tongue is dominant to not rolling tongue. What is the probability of having a child that can roll their tongue? Cannot role their tongue? What is the man’s genotype for tongue rolling? The woman’s? Show the Punnett square for child’s genotype Give the probability (percent chance) that the child can or cannot roll their tongue.arrow_forwardWhich of the following defines a genotype? The particular set of alleles that is carried in an individual’s chromosomes A part of a chromosome that encodes an RNA or protein product in its DNA sequence Forms of a gene with slightly different DNA sequences that may encode slightly different versions of the gene’s product An individual’s observable traitsarrow_forward
- What is the definition of homozygous ? having two identical alleles for a gene an organism's appearance or observable traits a variant for a character a heritable unit that determines a characterarrow_forwardForms and Expressions of Alleles Classify each of the following phenotypes and genotypes using the vocabulary from this lesson. Phenotype Brown eyes/ Genotype one dominant brown allele and one Phenotype Blue eyes/Genotype two Phenotype Brown eyes/Genotype two recessive blue alleles dominant brown alleles recessive blue allele :: ::: ::: homozygous recessive homozygous dominant heterozygous Save Submit Google Chrome edu DELL 4 7 8. 9. tw #arrow_forwardRecessives Allele, an allele that is fully expressed in the phenotype of a heterozygote. Select one: True Falsearrow_forward
- A phenotype trait that is depending on several genes is said to be:arrow_forwardA heterozygote has _____. a. only one of the various forms of a gene b. a pair of identical alleles c. a pair of contrasting alleles d. a haploid condition, in genetic termsarrow_forwardBill and Marie each have flat feet, long eyelashes, and achoo syndrome (chronic sneezing). All are dominant traits. The genes for these traits each have two alleles, which we can designate as follows: Bill is heterozygous for each trait. Marie is homozygous for all of them. What is Bill's genotype? What is Maries genotype? If they have four children, what is the probability that each child will have the same phenotype as the parents? What is the probability that a child will have short lashes, high arches, and no achoo syndrome?arrow_forward
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