How do we know that eye formation in all animals is controlled by a binary switch gene?

Q: Epigenetics addresses a) the mechanism by which the environment alters a person’s genotype. b) the…

A: Answer : Option (C) is correct. ~ the mechanisms that can alter gene expression.

Q: If a mother snail is heterozygous, Dd, which gene products will the egg cell receive?

A: Sir Gregor Mendel was a priest and a teacher who did the famous hybridization experiment on garden…

Q: Define the term “kiss-and-run fusion”?

A: Introduction: Hormones and neurotransmitters get released from neurosecretory cells via the fusion…

Q: Explain how X-inactivation in female mammals results inpatchy coat color in calico cats.

A: Two sex chromosomes, identified as the X and Y chromosomes, decide the sex of animals. Genes are…

Q: Describe the following regulatory genes - maternal effect genes - pair rule genes - segmented…

A: Introduction  Gene regulation is the process of generating a polypeptide chain (gene product or…

Q: The Gap in knowledge tackled by the "Eyeless" paper was to determine O Whether eyes can be generated…

A: The Drosophila, eyeless (ey) gene codes for a transcription factor and shows similarity with the…

Q: Which Hox gene cluster is illustrated in the figure below?

A: Drosophila belongs to order Diptera, the order having one pair of wings. Here it is showing 2 pairs…

Q: a) Do the loss of function phenotypes differ between the genes between the genes in figure 1? What…

A: Let's go through each part of the analysis in more detail: a) Do the loss-of-function phenotypes…

Q: What is the pseudoautosomal region? How does the inheritance of traits encoded by genes in this…

A: The male chromosome has a single X chromosome and a Y chromosome. Y chromosome is acrocentric and…

Q: A condition known as icthyosis hystrix gravior appeared in a boy in the early eighteenth century.…

A: It passes from father to son and not from father to daughter.

Q: Occasionally, a person is found who has one blue eye and one brown eye or who has a sector of one…

A: Introduction A mutation is a change in an organism's DNA sequence. Mutations can be caused by…

Q: Explain why the erasure phase of imprinting is necessaryin eggs.

A: Genomic imprinting is a type of epigenetics, where an alteration in gene or chromosome changes the…

Q: of purple-feathered barn swallows. A clutch of eggs from this nest is separated into two halves. One…

A: Phenotype is usually affected by the genotype. Phenotype is external appearance and here the…

Q: origin and fate of the progenitor cells of the LGE and which type of migration do these progenitor…

A: LGE or lateral ganglionic eminence along with the MGE or medial ganglionic eminence form the basal…

Q: 5) Scale color in dragons is determined by two genes. The W gene is epistatic to the G gene. The W…

A: Epistasis is also known as non allelic interaction.  It does not follow Mendel's laws.

Q: 1. If there were only two alleles of TAS2R38 (AVI and PAV) in the human population, what are the…

A: The first part of the question is asking about the possible combinations of two alleles, AVI and…

Q: Discuss the Red Queen hypothesis.

A: Evolution can be defined as a process through which characteristicks of organisms changes over…

Q: Why is it useful to sort male mosquitoes from female mosquitoes?

A: Male mosquito do not bite the human. They do not need human blood for feeding they avoid human. They…

Q: There is no phylogenetic evidence for the gradual evolution of eye components. Eyes consist of…

A: Eyes are the photosensory organ that respond to light by forming a vision. It transmits the nerve…

Q: What is one statement that would support the theory that all organisms are related? A) The genetic…

A: In addition to being degenerate, the genetic code is also called to as 'unambiguous,' implying so…

Q: magine that you finally solved the mystery of the color pattern of zebras. One gene defines the…

A: Codominance is a form of inheritance wherein the alleles of a gene pair in a heterozygote are fully…

Q: Describe how Wickens and the Sachs experiments provide evidence for semantic coding in STM and LTM.…

A: According to Wickens, the subjects were the ones that are presented with some words that are related…

Q: what is the Chimp-Gene Fusion hypothesis? (Describe in detail the theory and weakness)

A: Chimp-Gene Fusion hypothesis explains that humans have one fewer chromosome pair in their cells than…

Q: What type of epigenetic change is responsible for genomic imprinting?

A: Epigenetic refers to the patterns of inheritance that involve the alterations in characteristics…

Q: How are morphogen gradients reliably interpreted?

A: Morphogens are defined as the signaling molecules that act over a long-range to determine the…

Q: If each cell in your body contains the same DNA sequence, how would the regulation of Gene X differ…

A: The regulation of Gene X can differ both quantitatively and qualitatively between intestinal…

Q: Some strains of bees show hygienic behavior by uncapping cells con-taining larvae infected with a…

A: Insects are the most diverse group of animals belongs to class Insecta. They represent more than…

Q: What is Epistasis? A) When one gene effect another B) When one gene effect multiple phenotype C)…

A: Introduction  Genes are the key component of genetic material which control almost all the cellular…

Q: Steven Frank and Laurence Hurst argued that a cytoplasmically inherited mutation in humans that has…

A: The inheritable disease that caused vision loss more in males and less in females is Leber…

Q: Explain The eyeless/Pax-6/AN gene is crucial for eye development?

A: The eyes are the visual organs of the body. They absorb light and change it into electro-chemical…

Q: There are some genetically inherited taste impairments that vary in their severity. Hypogeusia is a…

A: Introduction -  A condition where a person has little to no sense of tasteBitterness, sourness, and…

Q: The phenotype of a heterozygous mouse (Aa) is agouti.  The agouti banding pattern is due to altered…

A: * Homozygous dominant and Heterozygous will produce agouti that is AA or Aa respectively  and the…

Q: X inactivation explains the large color patches in calico cat fur and the smaller patches in…

A: The calico and tortoiseshell cats are named for their cat coloring.  The cat genes are usually…

Q: The numbers of chromosomes in the somatic cells of several oat varieties are sand oats: 14; slender…

A: Answer. Oats are Avena plant species and belong to the grass family. a). The basic chromosome number…

Q: Draw the structure of replicating fork?

A: