Matings between cousins can increase the rate of recessive genetic conditions in their progeny because cousins, are likely to share ___% of their DNA:
Matings between cousins can increase the rate of recessive genetic conditions in their progeny because cousins, are likely to share 12.5% of their DNA:
The offspring of consanguineous unions may be at increased risk for recessive disorders because of the expression of autosomal recessive gene mutations inherited from a common ancestor. The closer the biological relationship between parents, the greater is the probability that their offspring will inherit identical copies of one or more detrimental recessive genes. For example, first cousins are predicted to share 12.5% (1/8) of their genes. Thus, on average, their progeny will be homozygous at 6.25% (1/16) of gene loci.
Matings between cousins can increase the rate of recessive genetic conditions in their progeny because cousins,...
Two first cousins have a common grandfather with a genetic disorder that is a recessive condition. Neither the cousins nor any of their other relatives have the disorder. A) Draw a pedigree to show how the disorder is inherited in this family. B) If the first cousins were to marry and have a child, what is the probability that the child will have the disorder? You can assume that the unrelated parents of the cousins are not carriers.
In genetic analysis, the test is used to determine whether two recessive mutations that cause similar phenotype are allowed of the same gene. DNA strands are said to be because the phosphate linkages in the backbones run in opposite directions. An arrangement of metaphase chromosomes according to their and centromere placement is called a An enzyme called can produce a complementary DNA strand from an RNA template
1a.The mitochondria of eukaryotic cells likely evolved from bacteria because they share genetic similarity to proteobacteria they have undergone rapid mutagenesis they show signs of horizontal gene transfer they exhibit a similar structural composition 1b.What technique can be used to assess the phylogeny of most bacterial species? Cultivation in the laboratory b) Microscopy and physiology c) 16s and genome sequencing d) Environmental growth conditions Cultivation in the laboratory Microscopy and physiology...
Binary fission can be problematic for bacteria because A. it provides bacteria with very little genetic variation which negatively affects bacterial survival in the changing environment. B. it provides bacteria with too much genetic variation which negatively affects bacterial survival under stable environmental conditions. C .it provides bacteria with too much genetic variation which negatively affects bacterial survival in the changing environment. D .Binary fission is not problematic for bacteria.
Two genes, A and B, are 64 cM apart on a chromosome. How can we measure the genetic distance between A and B? In a test cross between a double heterozygote and a homozygous recessive individual, we should observe 64% recombinant progeny If gene C lies between A and B, we can measure the recombination rate between A-C and C-B. Both of the above will work There is no way to measure genetic distance greater than 50 cM. I know...
multiple choice questions: 1- What fraction of the progeny will show a recessive phenotype for just one gene in a cross between AaBbCc x AaBbCc? A. 7/16 B. 9/64 C. ¼ D. 27/64 E. 26/64 2- Siblings share what percentage of their alleles? A. ½ B. ¼ C. 1/8 D. 1/10 E. 1/16 3- In a heterozygote, one allele conceals the presence of another. This is Mendel's: A. principle of segregation. B. principle of independent assortment. C. principle of dominance....
Because ________ in the government budget deficit increase the real interest rate, budget deficits can ________ firm investment. decreases; increase increases; decrease decreases; decrease increases; increase When banks gain ________, they can ________ their loans; and the money supply ________. withdrawals; decrease; expands reserves; increase; expands withdrawals; increase; expands reserves; increase; contracts
1. People wit h the sex-linked genetic disease, hemophilia, suffer from excessive bleeding because their blood will not clot. Tom, Mary, and their 4 daughters do not exhibit symptoms of hemophilia. However, their son exhibits symptoms of hemophilia because: A) Tom is heterozygous B) Tom is homozygous C Mary is homozygous D) Mary is heterozygous E All of the above are equally likely What is the risk of having a child affected by disease with an autosomal recessive inheritance both...
True or False: there can be carriers for conditions that are inherited through dominant alleles, as well as those inherited through recessive alleles. Select one: True False Which of the following is NOT true regarding dominance/recessiveness relationships of alleles? Select one: O a. The trait of the recessive allele can be expressed but is not evident in a heterozygote. O b. Dominant alleles are not necessarily more common in a population than recessive alleles. O c. They range from complete...
The genetic code is "redundant" because: Question 1 options: Each amino acid is specified by only a single codon Most amino acids are specified by multiple codons Codons are groups of four consecutive DNA bases Each codon can specify multiple amino acids Question 2 (1 point) A mutation in the DNA may not result in change in protein function because: Question 2 options: Many different amino acids share similar chemical properties, so can substitute for one another without altering function...