2. Phenotypic variatioh fails tỏ také ihtó áččóuht the contribution from environmental effects. True / False 3. Dizygotic twins are A. related genetically the same as monozygotic twins B. related more than monozygotic twins C. related the same genetically as non-twin siblings D. similar to the parents

2. Phenotypic variatioh fails tỏ také ihtó áččóuht the contribution from environmental effects. True / False 3. Dizygotic twins are A. related genetically the same as monozygotic twins B. related more than monozygotic twins C. related the same genetically as non-twin siblings D. similar to the parents

Biology: The Unity and Diversity of Life (MindTap Course List)

15th Edition

ISBN:9781337408332

Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr

Chapter17: Processes Of Evolution

Section: Chapter Questions

Problem 6SQ

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3. Choose ONE trait observed in class and explain why one form of the trait is more frequent than the other form of the trait (i.e. why the dominant form is more frequent than the recessive form or vis-à-vis).
Which of the following represents an example of qualitative phenotypic variation? a. the lengths of peoples toes b. the body sizes of pigeons c. human ABO blood types d. the birth weights of humans e. the number of leaves on oak trees
A wild population of pea plants has two alleles for flower color in its gene pool. A dominant allele (P) specifies purple flowers; a recessive allele (p) specifies white flowers. If the die frequency of allele P is 0.75, what is the expected frequency of allele p?
2)If an individual has a widow's peak, which genotypes are possible? a)Group of answer choices b)Heterozygous c)Unable to determine d)Homozygous dominant e)Homozygous recessive
1.Which among the following statements is INCORRECT? A.Phenotype is the pair of genes that carries the genetic makeup of an organism B.Homozygous is a combination of two dominant or two recessive allele C.A recessive allele must be received from both parents to bring about a recessive phenotype D.Heterozygous is a combination of one dominant allele and one recessive allele
3. A student states, “If a person expresses the dominant trait for eye color, then the person’s genotype must be BB.” Is the student correct? Explain why or why not. Assume that the B allele is dominant, and the b allele is recessive.)
3) The ability to curl ones’ tongue up on the sides (T) is dominant to not being able to roll your tongue (t). a. A woman who can roll her tongue marries a man who cannot. The first child has the same phenotype as the father, what are the genotypes of the mother, father, and this child? b. What is the probability that the second child won’t be able to roll it’s tongue?
3)If an individual has a widow's peak, but one of their parents does not, which genotypes are possible? a)Group of answer choices b)Homozygous dominant c)Homozygous recessive d)Unable to determine e)Heterozygous
3. Black coat (B) color in Cocker Spaniels is dominant, while red coat (b) color is recessive; solid pattern (S) is dominant, while spotted (s) pattern is recessive. Create a Punnett square that shows all of the possible offspring of a solid black male (BBSs) mated to a solid red female (bbSs). Include the percentage/ratio of occurrence for each phenotype. Include the percentage/ratio of occurrence for each phenotype.
Hearing (H) in dogs is DOMINANT. Deafness(d) in puppies is caused by a recessive gene. Deaf puppies have the genotype dd.You have a hearing dog. What are its possible genotypes?________ _______The dog that you use to do a test cross with your hearing dog should have:genotype? _______ phenotype? ___ _________________Using Punnett Square show the results of test crossing BOTH OF THE POSSIBLE PARENT GENOTYPES:
I’m a bit confused about the probability part. Is it 25%, 0.0625% or something else? I know that getting a female is 50% and getting straight hair is 50% too.
2)If an individual that is homozygous dominant for a gene has offspring with an individual that is homozygous recessive for that gene, which genotypes are possible for their offspring? choose all that apply A)homozygous dominant B)heterozygous C)homozygous recessive D)more information would be needed