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

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: 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: 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: What is meant by the archreflex?

A: In order to protect the body from a sudden and harmful stimulus, there has been developed a special…

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: 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: 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: 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: 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: 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 a mother snail is heterozygous, Dd, which gene products will the oocyte receive?

A: The mom's genotype specifically influences her offspring's phenotype Broken rule: gene expression an…

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: 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: Could Bicoid be a morphogen thatdetermines the anterior end of a fruit fly?

A: A morphogen is a protein whose concentration gradient affects the developmental fate of the…

Q: How is such a linear activation of Hox genes carried out on the cellular level?

A: The Hox gene determines segment identity—whether a segment of the embryo will become a component of…

Q: Are queen and worker bees genetically different from each other?

A: Genetically different refers to the difference in the composition of the genetic material of the…

Q: Why do queen honey bees (Apis mellifera) behave very differently from their workers even though a…

A: The phenomenon of polyphenism exists in honey bee where more than two discrete phenotypes are…

Q: The FOXP2 gene is sometimes called the “language gene.” Why is this name inaccurate?

A: The FOXP2 gene present in many vertebrate including human beings. It encodes a protein Forkhead…

Q: What is the state of traditional herbal medicine in the Philippines with regards to reasearch and…

A: Harbal medicine are the medicine which are derived from the herbs ( from their leaves, stems or…

Q: If you wanted to produce a fly larvae with two head ends, which of the following would you do?…

A: The pattern formation in drosophila is a complex developmental event that is performed by…

Q: . Neurobiology of speech and language has been studied in a family in which half of the members have…

A: Answer :- option (B) is correct. - Determine the DNA sequence of the FOXP2 gene in several species…

Q: MCR1 the only gene responsible for the variation in the human skin color?

A: MCR1 (melanocortin 1 receptor)  gene is very well known to be associated with the variations found…

Q: What are the specialized cells—eggs within the ovules of the female parent and sperm cells within…

A: All flowering plants are known as angiosperms . These plants undergo sexual reproduction. The…

Q: o mate Drosophila for a lab experiment, you need? 1) virgin female 2)virgin male 3)both male and…

A: NOW a days Drosophila have been used as Model organism. There are various advantages that Drosophila…

Q: explain Position-effect variegation in Drosophila?

A: Mutation is defined as the permanent change or alterations happening in the sequence of the DNA of…

Q: why  CNVs are highly polymorphic ?

A: In humans two-third of the entire genome is made of copy number variants. These copy number variants…

Q: We have spent a lot of time comparing channelrhodopsin (which is found in Chlamydomonas) with…

A: Rhodopsins are photoreceptive proteins with alpha-helices of seven transmembrane and a covalent…

Q: What is one reason the super-taster gene might still exist today?

A: A person who has far greater intensity of sense of taste than a normal person is said to be a…

Q: You discover a lemur with purely black tail (no white rings) and you make the following…

A: A mutation is a change in the genetic material (DNA) of an organism. It can occur spontaneously or…

Q: What can you conclude about eyeless gene function?

A: The improvement of a homogeneous epithelium into designed units is an ineffectively gotten measure.…

Q: What organelle is involved in paternal imprinting?

A: Changes in the expression and operation of the genes are a part of the epigenetics process. Instead…

Q: How does the study of maze bright and maze dull rats raised in different cages show us that…

A: Individual behavioral variations were thought to be a result of environmental, rather than genetic…

Q: How do homeobox genes control segmental identity in drosophila embryo?

A: Homeobox genes encode DNA binding proteins that regulate the gene expression and controls…

Q: What does the fact that many organisms on earth share similar mechanisms of signal transduction mean…

A: Introduction :- Signal transduction is the process of relaying of signal received from outside…

Q: Which of the following is NOT true regarding Hox genes.     A) The sequence they appear in their…

A: Hox genes: Hox genes are a group of similar genes that define parts of an embryo's structure along…

Q: What genes are these Hox proteins regulating?

A: The Hox genes are special types of genes that involve the transcription factor gene. The expression…

Q: What is the function of the Pax 6 gene in the mouse eye reference to HOX gene

A: During early embryonic development, homeodomain proteins regulate gene expression and cell…