In humans, why is it that the mother transmits nearly all of the extranuclear genes to her children?

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: Define the term maternal effect genes, and explain why the protein products of some of these genes…

A: Genes come in pairs and are responsible for the inheritance and expression of the associated…

Q: What is haploinsufficiency?

A: Ploidy refers to the number of complete sets of chromosomes present in the cell. Most of the somatic…

Q: if cell division during gametogenesis is non-meiotic, what is the consequence to the future…

A: BASIC INFORMATION CELL DIVISION  It is necessary for all the cells In this the parent cell divides…

Q: What is asexual reproduction? Mention names of asexual production in animal, plant and bacteria…

A: Reproduction is a process wherein new organisms are produced from the existing organisms. It is a…

Q: Can this trait be passed to offspring?

A: The DNA (deoxyribonucleic acid) is the hereditary unit of an organism. It consists of purines and…

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: Why Mules Are Sterile?

A: A mule is the offspring of a male jackass and a mare. mares and jackasses are different species,…

Q: Which is an example of extranuclear inheritance?

A: Inheritance is a basic principle of genetics, which helps in understanding how traits transmit from…

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: After a successful in vitro fertilisation, the fertilised egg begins to divide. Where is this egg…

A: IVF (In vitro fertilization) also known as test tube baby is a technique in which the natural…

Q: How is it that some chromosomal abnormalities are incompatible with life as early as immediately…

A: Chromosomal abnormalities are one of the reasons of miscarriage and stillbirth and spontaneous…

Q: A fertilized egg will develop into a boy if it receives a/n_____________chromosome from its father.

A: Ans: Fertilization: It is the process in which haploid gamets such as eggs and sperms are fused in…

Q: What are maternal-effect genes? When are gene products from these genes made, and where are they…

A: Multicellular life forms create from a solitary prepared cell. This phone is supplied with the…

Q: What would be the outcome of a cross between a heterozygous female and a male that carries two…

A: The IGF2 (insulin-like growth factor 2) gene gives instructions for the synthesis of igf2…

Q: Should We Alter Human Germ-Line Genomes?

A: Human germline alterations or human germline engineering is a branch of genetic engineering in which…

Q: Among different species, does extranuclear inheritance always follow a maternal inheritance pattern?…

A: Yes, extranuclear inheritance invariably is contributed by the mother. In many organisms, certain…

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 evidence indicates that a trait is coded by a dominant allele on an autosome?

A: Answer: AUTOSOMAL DOMINANT =  It is the condition when the trait is expressed by the 22 chromosomes…

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: Where are maternal-effect gene products made first? Where do they go?

A: Maternal-effect genes are expressed by the mother before the fertilization process. These genes…

Q: How would Shugoshin does not break down after anaphase I of meiosis affect the outcome of mitosis or…

A: Shugoshin is a protein that guides the chromosome cohesion during the process of cell division.…

Q: why are certain genes just expressed in the mother and not in the father or vice versa?

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

Q: What protein does the P53 code for and why is it important?

A: Answer :- The TP53 quality gives guidelines to making a protein called growth protein p53 (or p53).…

Q: what are proto-oncogenes

A: Oncogenes are those genes that can cause cancer. These genes are usually are normally present in our…

Q: What is the number of pairs of autosome in man?

A: The chromosomes are thread-like structure situated inside the nucleus of plant and animal cells.…

Q: List several ways in which telophase appears to be the reverse ofprophase and prometaphase.

A: In eukaryotes, there are two types of cell division, namely mitosis and meiosis. Mitosis occurs in…

Q: Can mitochondrial DNA be inherited from father?

A: The genome represents the genetic material in an organism having a set of chromosomes which is…

Q: which are major mechanisms by whichchromosomal rearrangements take place

A: A chromosomal rearrangement is a mutation that is a type of chromosome abnormality involving a…

Q: What is the action of the Sxl protein in females?

A: There are different regulatory proteins are present in both male and female. The RNA-binding protein…

Q: If m-m- females produce useless eggs, then how are m-m- produced?

A: Sexual reproduction refers to the form of reproduction that occurs through the union of male and…

Q: What is the link between a phosphate functional group, the cellular respiration and the X-linked…

A: A phosphate functional group is a simple phosphorus atom that is bound to four oxygen atoms.…

Q: Why does failure to metabolize phenylalanine produce such widespread and devastating effects on…

A: Phenylalanine is an essential type of hydrophobic amino acid. It's metabolism is very much required…

Q: How many polar bodies are given out in production of one egg during cogenesis?

A: In the human female reproductive system, the process of formation and maturation of the female…

Q: What is the meaning of term haploinsufficiency?

A: The gene is the basic physical and functional unit of heredity. Genes are made up of…

Q: What is Episomal expression?

A: Episomes are the segment of DNA that can either replicate autonomously in the cell cytoplasm or get…

Q: Describe in no more than ten sentences an example of allostery.

A: An enzyme is a protein that acts as a biocatalyst and speeds up the chemical reaction. It is made of…

Q: Offsprings produced by asexual reproduction are referred to as clones. Why?

A: Reproduction is the biological process by which new individual organisms called offspring are…

Q: A human liver has how many autosomes from the father? a. 46 b.23 c. 22 d.2 e. 1

A: Nucleus is a main controller of the cell which comprises of thread like structure known as…

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: What is a A germline mutation?

A: A germinal mutation or germline mutation as the word indicates itself it is a mutation in germline…

Q: Is there a difference between maternal effect and cytoplasmic inheritance?

A: Inheritance is the process by which this genetic information present in the genes is passed on from…

Q: During meiosis in male mammals, sex chromosomes segregate to produce two types of sperm: X‑bearing…

A: In mammals sex determination is male heterogametic type in which the male produces two types of…

Q: What would be the consequences to the outcome of meiosis if SPO11 is absent? Explain your reason.

A: Meiosis is a type of cell division that produces four gamete cells by halving the number of…

Q: define Haploinsufficiency

A: Haploinsufficiency basically refers to the condition in the diploid organism that demonstrates the…

Q: What is the name of the structure that holds homologous chromosomes together after they have paired…

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

Mitochondrial Mutations

A mitochondrion is a cellular organelle that serves as the site for cellular respiration and energy production (ATP or Adenosine Triphosphate). It is a double-membrane-bound organelle and is only present in eukaryotic cells.