Compared to a differentiated cell in the body, embryonic cells at the blastocyst stage have: O Less tightly packed chromatin and fewer repressed genes. More tightly packed chromatin and more repressed genes. O The same epigenetic status. An unknown epigenetic status (not yet discovered).

Q: Nanos is a strict maternal-effect gene in Drosophila; that is not transcribed in the embryo.…

A: The phenotypes of embryos with mutations in nanos can vary greatly, so it is important to predict…

Q: a. In which sex, XY males or XX females, would the Sxl protein bind to the msl-2 mRNA? b. As…

A: Drosophila sex determination and dosage compensation are primarily controlled by two distinct sets…

Q: Answer the following questions based on the information given below: Act>CD2>Gal4 is a…

A: Detailed explanation: Let's break down how to identify cells expressing gene X based on the…

Q: True or false about the following statements on Drosophila eye development     a. Hh, which is…

A: Here i discuss the statements about eye development in Drosophila. Note:- according to bartleby…

Q: During the formation of a Barr body, histone H3 is methylated by PCR2 (polycomb repressive complex…

A: Barr body is also known as X chromatin, is inactive X chromosome in a cell where there is more than…

Q: 23 of 41 Which of the following proteins is NOT encoded by a proto-oncogene? O Myc Ras E-cadherin…

A: A gene that plays a role in proper cell growth. A proto-mutations oncogene's (changes) can turn it…

Q: At which stage of development does the Id protein function? Why is its function important?

A: Inhibitor of DNA binding (ID) proteins are a family of highly conserved transcriptional regulators…

Q: The CTCF protein is involved in the regulation of the Igf2-H19 gene cluster. Which of the following…

A: The gene expression involves transcription and later translation. Different mechanisms are involved…

Q: Occasionally, a mouse X chromosome is broken into two pieces and each piece becomes attached to a…

A: Introduction One Of Two Sex Chromosomes Is The X Chromosome. The X And Y Chromosomes Are Found In…

Q: QUESTION 50 Expression of the maternal vs paternal alleles for the Igf2 gene is determined by: O…

A: 50. Expression of the maternal vs paternal allele for the Igf2 gene is determine byimprinting…

Q: Can you explain: p53 and p63 genes, the relationship will have between the two genes being mutated,…

A: Ectodermal disorder- It is a group of disorders that can arise from the mutation of one or more…

Q: Polarity of oocyte of Drosophila What is the difference between the anterior and posterior…

A: DNA is the genetic material in most living organisms. It is the information hub of the cell that…

Q: You are interested in the expression of regions of the X chromosome at different times in human…

A: The investigation of the X chromosome at different phases of human fetal development is a complex…

Q: Translocation of a proto-oncogene to a chromosome region with reduced methylation increases its…

A: Abnormal sequences of DNA methylation, disturbed patterns of histone posttranslational modifications…

Q: The human RGS10 gene is found on Chromosome 10.  How many copies of RGS10 does one cell have when…

A: A cell cycle is a series of event that occurs in a cell to divide it into two cells by the process…

Q: Activation of p53 during cellular stress will generally Select one: o a. Increase transcription of…

A: P553 is a tumor suppressor gene.

Q: Match the following some are  redundant please explain why?: Axis specification Pattern formation…

A: The study of the process through which organisms grow and develop from a single cell to a mature…

Q: A report in the New England Journal of Medicine (Seminar et al. 2003) relayed a discovery about a…

A: Suppose, we have two gene a and A  a is carried the disease  Aa- carrier  AA- normal aa- affected…

Q: Which of the following is NOT a regulator of the ep O CpG island hypomethylation RNA pol complex…

A: The epigenome is made up of chemical compounds and proteins which can attack to the DNA and take…

Q: Cleavage divides the eggs of vertebrates and many other animals into a cluster of separate cells. By…

A: An embryo in development is an excellent example of intricate biological self-organization and…

Q: If gene transcription is inhibited after fertilization, development past the two-cell stage does not…

A: The difference lies in the distinct developmental processes: gene transcription inhibition halts…

Q: The yeast cohesin subunit Scc1, which is essen-tial for sister-chromatid cohesion, can be…

A: The foundation of sister chromatid cohesion is the cycle by which chromatin-related cohesin protein…

Q: Epistasis: 1) In violets, purple flower color (P) is dominant over white (p), but there is also a…

A: Epistasis is a condition in which the expression of one gene is affected by the expression of one or…

Q: Gene dosage—the number of copies of a gene that areactively being expressed—is important to proper…

A: The number of copies of a particular gene, present in the genome refers to gene dosage. A proper…

Q: In humans, hemophilia is an X-linked recessive gene and will only be expressed in females if  they…

A: Hemophilia is a X linked recessive disorder so which is inherited in homozygous condition. In rare…

Q: All cells express the same genes. false true

A: Gene expression means that genes are finally dictated into m r n a that helps in the expression of…

Q: The Barr body is the X chromosome in the cell that is expressed, whereas the other X chromosome is…

A: Murray Barr identified a Barr body, which is an inactive X chromosome in a cell with many X…

Q: Members of a family are affected by a Oco-dominance hereditary inflammatory and Odominant negative…

A: Autoinflammation is a disease caused by mutations in the PLCG2 gene. People with such conditions…

Q: Chromosomal translocation can result in cells expressing a fusion protein with uncontrolled receptor…

A: The correct answer is Tel/PDGFR

Q: Propose a model that outlines, step-by-step, events that could reasonably generate the expression of…

A: The "Eve stripe protein" refers to a specific protein called "Even-skipped" (Eve) that is involved…

Q: Question 7 Review exceptions to Mendelian inheritance. Match the term and its description. Each term…

A: Introduction :- Mendelian inheritance pattern is based on the principle of dominant and…

Q: In many breast cancers, ER (alpha) activation by estrogens is generally considered responsible for…

A: In breast cancers, the activation of estrogen receptor alpha (ERα) by estrogens is often associated…

Q: What will be the effect on sexual development in newly fertilized Drosophila embryos if the…

A: Sex determination in drosophila melanogaster is done by balancing the male determinants on the…

Q: HAT48 is a histone acetyltransferase that binds DNA next to the promoter of the OVU3 gene. Likely,…

A: Acetyltransferases are the enzymes that catalyze the transfer of acetyl groups. Histones are the…

Q: Which of the following is not true? ○ In a somatic cell, imprinted genes are not expressed because…

A: Here's the analysis of each statement:In a somatic cell, imprinted genes are not expressed because…

Q: In drosophila embryos that are null mutants for hedgehog (hh'/hh), expression of which of the…

A: In drosophila, segment polarity genes are those genes which act to specify the correct pattern of…

Q: On the left side of this figure, explain why the offspringdoes not have Prader-Willi syndrome but…

A: Genomic imprinting is a phenomenon of marking a gene with the information regarding the parental…

Q: Genomic imprinting refers to the inheritance of:   Question 16 options:   Gamete…

A: The correct answer is:Gamete specific DNA methylating marks during meiosis.Genomic imprinting refers…

Q: An embryologist measures the concentrations of three morphogens (A, B, C) in a row of cells across…

A: Genetics is a branch of science that deals in the study of genes, heredity, and genetic variation of…

Q: Cornelia de Lange syndrome (CdLS) is a rare humandisease caused by a dominant loss-of-function…

A: Hi there! Since you have posted multiple questions, we are answering only first two sub-parts.…

Q: What will be the effect on sexual development in newly fertilized Drosophila embryos if the…

A: In Drosophila, sex determination is achieved by a balance of female determinants on the X chromosome…

Q: Identical twins have identical but they do not have identical adult phenotypes. ----- This is caused…

A: Genetics is a study of genes, heredity, and genetic variation in an organism. Living organisms…

Q: HEAD THORAX ABDOMEN Bicoid Hunchback Giant Krüppel Knirps

A: Gene is a unit of heredity that is transferred from 1 generation to another, from parents to their…

Q: Which of the following proteins is a combinatorial transcriptional regulator in Drosophila that…

A: There are few important points : Combinatorial transcriptional regulator : It is a particular…

Q: Down’s syndrome in humans (trisomy 21), with 47 chromosomes in each diploid somatic cell, is…

A: Down's syndrome in humans also known as Trisomy 21 has 47 chromosomes in every diploid somatic cell…