Explain Bicoid is the anterior morphogen?

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: Where are Drosophila melanogaster found?

A: Drosophila belongs to the family Drosophilidae, whose members are commonly called as small fruit…

Q: What does o Cell that contains the transgene must have the ability to develop into gametes mean for…

A: Cell is the smallest structural and, functional unit of life. It is simple machinery that houses all…

Q: What Proteins make up the kinetochore?

A: A chromosome is a thread like structure present within the living cells. It contains the genetic…

Q: What are telophase 1?

A: Meiosis can be divided into two divisions as a) Meiosis I b) Meiosis II.  As mitosis, the cell is…

Q: What cohesins facilitate the attachment of sister kineto-chores to microtubules emanating from the…

A: The segregation of homologous chromosomes lies in them being pulled apart by microtubules. On one…

Q: Morphogenesis is ?

A:

Q: What are the half-circle rotations of a chromosomal region?

A: Chromosomes emerge as thread-like structures inside the nucleus during cell division.…

Q: Explain the X-Linkage in Drosophila ?

A: X-linkage is the sex linkage that involves X chromosome. X linkage is the genetic factor or gene…

Q: describe the Chromosomal rearrangements caused by TEs

A: Transposable elements (TE) or transposons are segments of DNA that can move around the genome.  It…

Q: During crossing over, does the segments of DNA being exchanged between chomosomes contain the same…

A: Most organisms that endure sexual reproduction contain 2 varieties of cells in their body – haploid…

Q: In the absence of SPO11, what meiotic events will be affected during early prophase I?

A: Spo11 protein encoded by gene Spo11 plays an important role in creating double-stranded breaks and…

Q: How do monocilia function in development?

A: Renal epithelial can be defined as the single layer of cells that will lining the nephron. Renal…

Q: What does post covid syndrome mean?

A: Covid 19, or coronavirus disease which was discovered in 2019 in the Wuhan district in china. From…

Q: Explain the two major mechanisms by whichchromosomal rearrangements take place.

A: The breaking and reassembling of chromosomal segments accompanying evolution that can occur within…

Q: Define Drosophila,

A: Drosophila melanogaster is the species of Drosophila which is an inconspicuous, common fly found…

Q: Name and describe two birth defects resulting from nondisjunction of autosomes and two from…

A: Nondisjunction of chromosomes:- Non disjunction means failure of the paired chromosomes to separate…

Q: Which of the following is an accurate model and description of anaphase II in Cape parrots?

A: As per the Karyotype of the somatic cells from the cape parrots obtained, they have total 29 pair of…

Q: Which sex chromosome (X or Y) carries the gene for eye color in Drosophila?

A: The mode of inheritance is a pattern of obtaining parentral alleles  or genes to the offsprings. The…

Q: What are choromosome theory of inheritence?

A: The Chromosomal Theory of inheritance was suggested by two scientists named Sutton and Boveri, which…

Q: Why dominant negative mutation shows the haploinsufficiency  ?

A: A mutation is a change that occurs in our DNA sequence, either due to mistake when the DNA is copied…

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: What are chromosome 9 characteristics and where does chromosome 9 represent?

A: The humans consist of 46 chromosomes in each cell that are divided into 23 pairs.  There are two…

Q: What are the cells surrounding the oocyte? Are they germ-line or somatic in origin?

A: Gametogenesis is the process of production of gametes (sperm and eggs) via meiosis which is a type…

Q: Describe how different types of chromosomalrearrangements  generate new gene products.

A: Chromosomes are composed of mainly deoxyribonucleic acid (DNA) and binding proteins.

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: Describe the cytological observation that suggests that crossing over occurs during the first…

A: The reductional cell division is the meiosis. It happens in two major stages- meiosis I and meiosis…

Q: name the Extrachromosomal elements?

A: Chromosomes are thread-like structure, which are composed of deoxyribonucleic acid (DNA) and…

Q: Explain Loss of p53 function leads to genomic instability?

A: The TP53 gene provides instructions for making a protein called tumor protein p53 (p53). This…

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: Define chromosomal interference?

A: Chromosomes are the thread-like structures that appear only during cell division.

Q: Determines Sex in Drosophila?

A: Drosophila melanogaster is a common fruit fly. It is most common subject used in majority of genetic…

Q: Differentiate between Maternal and Paternal chromosomes.

A: Chromosomes are long thread like structures present in all the cells of the body. The number of…

Q: During embryonic development, what event causes one of the twoX chromosomes to be remain active,…

A: Introduction: X chromosome inactivation is also referred to as Lyonization and is a process in which…

Q: Indicate below the name of the chromosomal regions that are squared and named respectively A and B…

A: John Cairns was the first person to observe the replicating chromosome in E.Coli by autoradiography…

Q: In which chromosome gene 5-HTT locates?

A: Chromosomes are defined as the structures that are present in the nucleus of the cell which carries…

Q: What process occurs when genes swap position on a chromosome during meiosis, as in the case of Cru…

A: Meiosis is a cellular process where a single cell divides two times to produce four cells containing…

Q: Define deletion?

A: Chromosomes are thread-like structures situated inside the nucleus of plant and animal cells. Each…

Q: How Chromosomal Rearrangements are Caused?

A: Numerous structural rearrangements in chromosomes have been characterised, inversions and…

Q: In a Drosophila where somatic cells have 8 chromosomes, and gametes have 4 chromosomes, what is the…

A: Meiotic cell division is the process in which a single chromosomal replications cycle is followed by…

Q: Explain how polytene chromosomes of Drosophila are produced and how they form a six-armed structure?

A: Polytene chromosomes are large chromosomes that have thousands of DNA strands. They provide a high…

Q: How does distribution of the gray crescent affectthe developmental potential of the first two…

A: Introduction: Gray crescent is a cortical region present in the egg of the frog that is recently…