BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
10th Edition
ISBN: 9781305967359
Author: STARR
Publisher: CENGAGE L
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Chapter 14, Problem 9SA
Alleles for Tay-Sachs disease are inherited in an autosomal recessive pattern. Why would two parents with a normal
| a. Both parents are homozygous for a Tay-Sachs allele. |
| b. Both parents are heterozygous for a Tay-Sachs allele. |
| c. New mutations gave rise to Tay-Sachs in the child. |
| d. b or c |
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Students have asked these similar questions
If a genetic disease is inherited on the basis of an autosomal dominant gene, one would expect
to find which of the following?
A. Affected fathers have only affected children.
B. Affected mothers never have affected sons.
C. If both parents are affected, all of their offspring have the disease.
D. If a child has the disease, one of his or her grandparents also had the disease.
What is Mendelian inheritance?
a. Mendelian genes code an entire phenotype so that children will not be clones of their parents.
b. Mendelian genetics are those genes that code for dominant or recessive illnesses but only if no polygenic traits cancel them out.
c. Mendelian genes sit at one loci with one allele from Mom and one allele from Dad.
d. Mendelian genetics is when two or more genes at two or more loci express one trait
A is a dominant gene for normal pigment, and a is its recessive allele for albinism (and pink eyes). B is a dominant gene for brown eyes, and b is its recessive allele (blue). What is the mother's genotype if two brown-eyed parents have fraternal twins, one with blue eyes and one with pink eyes (albino)?
a. AaBb b. AaBB c. aaBb d. aabb e. AABB
Chapter 14 Solutions
BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
Ch. 14 - Constructing a family pedigree is particularly...Ch. 14 - Prob. 2SACh. 14 - Prob. 3SACh. 14 - Prob. 4SACh. 14 - Prob. 5SACh. 14 - A trait that is present in a male child but not in...Ch. 14 - Color blindness is a case of ________ inheritance....Ch. 14 - Prob. 8SACh. 14 - Alleles for Tay-Sachs disease are inherited in an...Ch. 14 - Prob. 10SA
Ch. 14 - Prob. 11SACh. 14 - Prob. 12SACh. 14 - Prob. 13SACh. 14 - Klinefelter syndrome XXY can be easily diagnosed...Ch. 14 - Match the chromosome terms appropriately. ___...Ch. 14 - Does the phenotype indicated by the red circles...Ch. 14 - Human females have two X chromosomes XX; males...Ch. 14 - Somatic cells of individuals with Down syndrome...Ch. 14 - An allele responsible for Marfan syndrome Section...Ch. 14 - Both Duchenne muscular dystrophy and color...
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- Tay-Sach's disease is caused by one gene. The disease is recessive. Is it possible for two healthy people to have a child with the disease? A. Yes B. No Is it possible for two people who both have the disease to have a healthy child? A. Yes B. Noarrow_forwardIn a trait that follows Mendelian rules of inheritance, what is the only way an organism can have the recessive phenotype? A. By having the homozygous recessive genotype B. By being heterozygous for that genotype C. It is not possible to get the recessive phenotype in Mendelian genetics D. If one parent is homozygous recessive for that trait, any offspring are guaranteed the recessive phenotype E. By being homozygous dominant for that genotypearrow_forwardPlease choose the correct answer. If a recessive mutation kills an individual during the early stages of its development, what is the possible mode of inheritance exhibited if a recessive F1 with heterozygous parents survives? a. epigenetic inheritance b. maternal inheritance c. maternal effect d. organelle inheritancearrow_forward
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