Drosophila melanogaster has which four linkage groups?

Q: How long is Drosophila melanogaster life cycle?

A: The Drosophila melanogaster is the widely used model organism in the field of genetics and…

Q: Where are Drosophila melanogaster found?

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

Q: Does crossing over occur during prophase II? From an evolutionary perspective, why is this…

A: Chromosomes can be defined as the thread-like structures that is  located inside the nucleus of…

Q: How much  is the weight of  1 copy of the human haploid genome  ?

A: The genome of an organism refers to the hereditary information, which is encoded in the DNA of the…

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: What are the number of chromosomes in mustard mouse?

A: In a eukaryotic cell, the genome is distributed among multiple chromosomes located inside the cell’s…

Q: what is the Mechanism of DNA Replication in DrosophilaChromosomes?

A: DNA replication is the process in which DNA makes a copy of itself by copying a double-stranded DNA…

Q: How many chromosomes would be found in somatic cells of an allotetraploid plant if its parent…

A: 10 Chromosomes.

Q: Who discovered Drosophila melanogaster?

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

Q: Why is polyploidy rare in some animals?

A: Polyploidy is a condition in organism where it has more than diploid number of chromosomes.…

Q: Why does therecombination frequency ofgenes vary with the distancebetween them in thechromosome?

A: The genetic material exchange between the two homologous chromosomes and that produces recombinant…

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 might happen if only one kinetochore of a particular chromosome attached to a microtubule?

A: kinetochore - kinetochore is composed of a large protein complex. That assembles on a specialized…

Q: Why is polyploidy important

A: A euploid organism has a chromosome number that is an exact multiple of a chromosome set in its…

Q: What is a Haploid

A: Ploidy is the number of the set of chromosomes that are present in the nucleus. It can be haploid or…

Q: What changes, if any, would you predict would occur in the pigmentation of Drosophila melanogaster…

A: The relatively simple morphological trait that helps in the mapping of the genetic basis of…

Q: With regard to development, what would the dire consequences beif polycomb group complexes did not…

A: Polycomb-group proteins basically refer to the proteins possessing the ability to remodel…

Q: What functions do the two centromere-associatedcomplexes, cohesin and the kinetochore, play…

A: Chromosomes are the condensed form of DNA that are formed by the condensation of chromatin material…

Q: Map distances were determined for four differentgenes (MAT, HIS4, THR4, and LEU2) on chromosome III…

A: Chromosomes are long thread like structures that carry coded genetic information in the form of…

Q: Where are chromosomal fragments of non sister homologs exchanged and remain as part of the process…

A: Crossing over happens all the time in  prophase I (Meiosis)  before formation of tetrads area unit…

Q: How do we know that human aneuploidy for each of the 22 autosomes occurs at conception, even though…

A: Developmental biology is the branch of biology in which the development of the organisms from the…

Q: In Drosophila melanogaster, curled wings (cu) was one of the first mutants described by

A: Genetics is a part of biology that deals with the transmission of characteristics from one…

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: In Drosophila subobscura, the presence of a recessive gene called grandchildless (gs) causes the…

A: The grandchildless is an autosomal recessive condition (gs/gs). The males of the Drosophila…

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: What is a tetragametic chimera and how does it occur?

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

Q: Humans and many other complex organisms are diploid, possessing two sets of genes, one inherited…

A: Evolution is the process of development of an organism in such a manner that it has an advantage…

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

A: Red eye colour is dominant over white eye colour in drosophila.

Q: Crossing-over does not occur between any pair of homologous chromosomes during meiosis in male…

A: During meiosis, crossing over allows recombination of genes between homologous chromosomes. Based on…

Q: Why is drosophila aconvenient animal for thestudy of linked genes?

A: Genetics is the branch of biology, which deals with the study of genes, their pattern of…

Q: Shown below is a karyotype from a human being. How many total autosomes does this individual have?…

A: A chromosome is a long DNA molecule that contains part or all of an organism's genetic material.…

Q: Where are the two ends of a kinetochore microtubule?

A: Cells are the fundamental basic unit of life. They are modified in different ways to carry out…

Q: What possible conclusions can be drawn from the observations that in male Drosophila, no crossing…

A: The structural components are also termed synaptonemal complexes. During the zygonema stage of…

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: Where are there over 250 species of fruit flies (Drosophila)?

A: Drosophilidae, which members are often referred to as "small fruit flies”. Drosophila melanogaster…

Q: In humans, males are heterogametic and females are homogametic, Explain. Are there any examples…

A: Answer In humans the 23rd pair of chromosomes contains.

Q: Determines Sex in Drosophila?

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

Q: How is lozenge eye in drosophila an example of pseudoallelism?

A: Pseudoalleles are formed by duplication of a gene which further evolved to develop new functions.…

Q: Which Position-effect variegation in Drosophila?

A: Drosophila are known as the fruit flies that are importantly used as a model organism in the genomic…

Q: How many chromosomes does Drosophila melanogaster have?

A: Drosophila melanogaster is a species of fly in the family Drosophilidae. Drosophila is commonly…

Q: Illustrate the chromosomes in the salivary gland of Drosophila melanogaster

A: Drosophila  melanogaster have polytene chromosome in their salivary gland.

Q: Name one trait each in humans & in drosophila whose genes are located on sex chromosome.

A: In both humans and Drosophila, the female possesses two homomorphic sex chromosomes i.e., XX and the…

Q: How do we know that Drosophila utilizes a different sexdetermination mechanism than mammals, even…

A: A chromosome is a compact form of DNA  molecule present in dividing cells. In metabolically active…

Q: By conducting testcrosses, researchers have found that the sweetpea has seven linkage groups. How…

A: Step 1 Linkage groups are groups of linearly arranged genes as are present over the chromosomes. One…

Q: A new recessive mutant allele doesn’t show pseudodominance with any of the deletions that span…

A: Pseudodominance is defined as the sudden appearance of the phenotype of a recessive gene in a…

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…