Chiasmatic interference is caused by: A. An artifact caused by the Chi square distribution. B. Genes physically being distant but on the same chromosome. C. Some genes are naturally more charismatic than others. D. Epistasis combined with suppression.
Q: Molecular geneticists have performed experiments in which they altered the number of copies of the…
A: Bicoid protein is a maternal-effect gene that code for the normal development of anterior parts such…
Q: Which of the following depicts an epigenetic change? i. Green, variegated and albino Agave plants…
A: Changes in gene expression that are passed down to cells or future generations but do not involve…
Q: In an investigation using Drosophila, an undergraduate student successfully described 2 new genes…
A: Recombination frequency is a measure of intensity of linkage between two genes. For any two genes,…
Q: In Drosophila, yellow body color is due to an X-linked gene that is recessive to the gene for gray…
A: Step 1 Since you have posted a question with multiple sub-parts, we will solve the first three…
Q: Which of the following is a possible explanation for pleiotropy?a. The expression of a single gene…
A: Genetics is the investigation of genes and attempts to clarify what they are and how they work.…
Q: When the S.cerevisiae genome was sequenced and surveyed for possible genes, only about 40% of those…
A: Loss of function allele can be created by transposon mediated insertional inactivation. The…
Q: An undergraduate researcher in your lab is studying mutations affecting the wings of Drosophila…
A: Alleles of homozygous bent-winged fly which possesses the normal allele of apterous: ap+be, apbe…
Q: a. What is the Raly gene? What does it encode? How does it relate to the lethality of Ay? b. A…
A: "Genes" are the fundamental unit of heredity. They store genetic information in the form of DNA,…
Q: Red–green color blindness in humans is due to an X-linked recessive gene. A woman whose father is…
A: X linked recessive inheritance is a condition where defective gene is located on X chromosome.…
Q: The wild-type (normal) fruit fly, Drosophila melanogaster, has straight wings and long bristles.…
A: Wild type fruit fly Drosophila melanogaster posses straight wings and a long bristles. The mutant…
Q: Diseases which are caused by recessive variants in loci located on the X chromosome affect females…
A: ( Comment: As per the guidelines,we are allowed to answer one question at a time, so repost second…
Q: What degree of differences would you expect to see in the DNA base sequences and epigenetic marks of…
A: Monozygotic twins are born due to splitting of one single fertilized egg into two embryos. They are…
Q: The objective of the Single Gene Inheritance project is to determine: Select one: Whether the…
A: Every trait is mainly governed by the gene which is the functional part of the DNA. Changes in genes…
Q: Let's say that an experiment resulted in the production of several unattached kinetochores. What…
A: It includes cell division, replication and growth. All these processes should be carried out in a…
Q: In X chromosome inactivation... A-Why it is inactivated? B- How it is inactivated? C-Is the…
A: Epigenetics is the subject of heritable differences in gene representation that do not require…
Q: A complex biochemical pathway is shown below, along with the alleles that either promote or inhibit…
A: Metabolic pathways or biochemical pathways are a series of chemical reactions that occur within the…
Q: In Drosophila, a female fly is heterozygous for three mutations, Bar eyes (B), miniature wings (m),…
A: In terms of genetics and genomics, linkage describes how closely genes or other DNA sequences are…
Q: Several Drosophila species with unspotted wings are descended from a spotted ancestor. Would you…
A: Drosophila has a short, basic proliferation cycle. Organic product flies are little (3 mm long) yet…
Q: In a cross between a white-eyed female (ww) and a red-eyed male (w+Y), nearly all the progeny were…
A: When a cross takes place between a white-eyed female (ww) and a red-eyed male (w+Y), nearly all the…
Q: Two plants with white flowers, each from true-breeding strains, were crossed. All the F1 plants had…
A: The homozygous (true-breeding) strains of plants producing white-colored flowers mate to produce F1…
Q: Two normal looking fruit flies were crossed and in their progeny, there were 202 females and 98…
A: Answer: Fruit flies have one or two X chromosomes and 2 sets of autosomal chromosomes. When there is…
Q: Chlamydomonas, a eukaryotic green alga, may be sensitive to the antibiotic erythromycin, which…
A: Chlamydomonas is a eukaryotic green algae belongs to Chlorophyta phylum of Chlamydomonaceae family.…
Q: Which is NOT a way that deletions can cause abnormal phenotypes?
A: Haploinsufficiency situation arrives due to total level of gene product/ a particular protein…
Q: Please find the attachment
A: Transprotein: A gene product that diffuses from the site and acts on other gene segments is called…
Q: In some genetically engineered corn plants, a Bt gene was inserted into a chromosome. The Bt gene…
A: INTRODUCTION The genetically modified organisms in Bt corn are mainly called GMOs. In…
Q: A)If a mutation is present in a cell undergoing mitosis, which cells will it be passed on to? If a…
A: Genetic material is nothing but the sequence of nucleic acids which is called as DNA. It contains…
Q: Cape parrots are found in forests in South Africa. In a study of Cape parrot genetics, biologists…
A: Given,29 pair of chromosomes in a cape parrot somatic cell.
Q: Which of the following statements is FALSE about x chromosome inavtivation in mammals? A. It relies…
A: X chromosome inactivation is also knows as lyonisation. It occurs in females.
Q: Drosophila geneticists made the first genetic maps. They claimed that the gene loci that they mapped…
A: Genetic map is the one that gives the probable location of genes on a chromosome. A genetic map is…
Q: You are interested in studying position effect variegation in Drosophila using the chromosome…
A: DNA is the nucleic acids present in the organisms. DNA is the deoxy ribose nucleic acid in which…
Q: Nondisjunction can happen in males and females. It has been found to correlate with advanced…
A: Non disjunction is the failure of chromosome separation during meiosis that cause to produce…
Q: . In the plant Arabidopsis thaliana, a geneticist is interested in the development of trichomes…
A: Genetics is a part of science concerned about the investigation of genes, hereditary variety, and…
Q: In humans, the development of gonadal sex in females is determined by a. The production of inductors…
A: Gonadotropin-releasing hormone (GnRH) stimulates FSH and LH generation in both males and females.…
Q: In Drosophila, red eyes is wild-type and cinnabar eyes are mutant. Wings with crossveins are wild-…
A: In Drosophila, color of eyes are represented as red and cinnabar in which red eyes is wild and…
Q: Drosophila can have 1, 2, or 3 stripes on their body. From previous experiments, you suspect that…
A: Introduction Drosophila melanogaster is a species of fly in the family Drosophilidae. The species is…
Q: (a) What is the mutant that helps us to understand the adaxial identity of leaf development and the…
A: Angiosperms are the most advanced terrestrial plants. The development of a flowering plant begins…
Q: For XCI to occur, where are the Xist and Tsix genes expressed?a. Xist is expressed only on Xa, and…
A: The inactivation of the X chromosome leads to the formation of a Barr body. It ensures the dosage…
Q: Suppose that you are studying the role of Protein B, which you believe plays a role in regulating…
A: Apoptosis is a process of programmed cell death that occurs in multicellular organisms. It is a…
Q: The characteristic “X” shape of chromosomes is _____. a. a result of maximum compaction of the…
A: The X-shape is also not one chromosome: it's two. One of the two angled columns that make that “X”…
Q: In a cross between Aa Bb XCDXCD and Aa Bb XCDY, the A gene controls earwax- where wet earwax is…
A: A= earwax B- tasting ability C- color vision D= dystrophin enzyme
Q: normal wings (A) are dominant to dumpy wings (a) and the presence of eyes (B) is dominant to the…
A:
Q: Molecular geneticists have performed experiments in which they altered the number of copies of the…
A: Drosophila melanogaster is a fly species that belong to order Diptera. Drosophila is also known as…
Q: In Pansies, two genes, B and D, control the synthesis of the pigments in flower petals. The…
A: The genes are the hereditary unit of an organism which are passed on from the parental generation to…
Q: How do the egl-1 and pos-1 phenotypes interact? Do you think this is a meaningful genetic…
A: Caenorhabditis elegans, a nematode is a useful genetic model to study RNA interference technique…
Q: Molecular geneticists have performed experiments in which they altered the number of copies of the…
A: What are bicoid genes? Bicoid protein gradient formation is one of the earliest steps in fruit fly…
Q: Turner’s syndrome is the most common sex chromosome aneuploid. Which sex chromosome aneuploid is the…
A: Turner's syndrome: A chromosomal disorder in which a female is born with only one X chromosomeTurner…
Q: If a Drosophila female that is homozygous for an X-linked recessive mutation is bred with a male…
A: An organism has phenotype and genotype. Phenotype is the observable characteristics and genotype is…
Q: Indicate which of the four major classes of rearrangements (deletion, duplication, inversions, and…
A: The process of rearranging the chromosomes is known as chromosomal rearrangements. Chromosomal…
Q: chromosome that has spindle fibers attached across its whole length… a. has a localized…
A: The centromere is that part of the chromosome that links the sister chromatids. Spindle fibers are…
Q: Consider two different genes that are highly expressed in the tissue of your spleen (but not…
A: A gene is the most basic structure of hereditary. Genes play an important role in determining our…
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- Drosophila geneticists made the first genetic maps. They claimed that the gene loci that they mapped “behaved mathematically as though they were in linear order” in the genetic material. They did not claim that these loci were actually physically located in a line along the chromosome. 1. Given what was known about chromosomes and the genetic material at that time, are these statements correct? Why or why not?"Changes to the p53 protein structure can be caused by differences in DNA and can affect protein function." Can you give detailed explanation why this is causation and not correlation? The explanation should be related with mutation, structure changes during protein synthesis, chemical property changes in amino acids, and functions of p53 protein.What structure is most important in forming the tetrads? a. centromere b. synaptonemal complex c. chiasma d. kinetochore
- What degree of differences would you expect to see in the DNA base sequences and epigenetic marks of monozygotic twins? a. Similar differences in DNA base sequence and epigenetic marks b. Greater differences in DNA base sequence than epigenetic marks c. Greater differences in epigenetic marks than DNA base sequence d. No differences in either DNA base sequence or epigenetic marksTheodor Boveri predicted that malignancies would often be associated with chromosomal mutation. What lines of evidence substantiate this prediction?“In an organism that reproduces asexually, there is no difference between a somatic cell mutation and a germ line mutation.” Is this statement true? Explain.
- You engineer a chromosomally XY mouse in which SRY gene is inactivated. What do you expect to observe in this mouse? a) the mouse will develop male anatomical feautures b) the mouse will develop female anatomical feautures c)the mouse Y chromosome will convert into an X chromosome d) the mouse X chromosome will convert into a Y chromosome e) the mouse will exhibit an additional X chromosome making it XXYIf a Drosophila female that is homozygous for an X-linked recessive mutation is bred with a male that carries the corresponding wild-type allele, the offspring will..... a. show the mutant phenotype in all individuals. b. be uniform wild-type. c. show a phenotype intermediate to the parents' phenotype. d. show the mutant phenotype in all males and the wild-type phenotype in all females. e. have mutant and wild-type males and mutant and wild-type females.Predict how the synaptic configurations of homologous pairs of chromosomes might appear when one member is normal, and the other member has sustained a deletion or duplication?
- Imagine a scenario in which prenatal testing of a human female fetus indicates that the baby will have a normal XX karyotype but is heterozygous for a mutation that inactivates the Xist promoter. Allele “Xr” represents the mutated version of the Xist promoter, and “XR” represents the normal version of the Xist promoter. How will this mutation affect the process of X inactivation?A. "X inactivation will still be random with both mutant and normal X chromosomes being randomly inactivated" B. "The chromosome with the mutant Xist promoter will always be active" C. "The chromosome with the mutant Xist promoter will always be inactivated" D. "The normal X chromosome (no mutation in Xist) will always be active" E. "The normal X chromosome (no mutation in Xist) will always be inactivated"Which of the following statements is FALSE about x chromosome inavtivation in mammals? A. It relies on chromatic remodeling B. It leads to the formation of Barr body. C. It only occurs in males. D. It involves histone modificationBy definition, a pericentric inversion includes the ________. a. centromere b. chiasma c. telomere d. synapse