What are some diseases or genetic abnormalities caused by dominant genes? Why are severe dominant genetic diseases rarer than recessive ones?

Q: What is Extrachromosomal inheritance?

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

Q: What causes genetic variations and can result in different alleles?

A: Alleles are the different forms of a single gene.

Q: What is Biparental inheritance?

A: Genes carry coded genetic information in the form of specific nucleotide sequences. This specific…

Q: What are twins?Genetically what are the twotypes of twins that can begenerated?

A: Pregnancy is also termed as gestation during which one or more offspring develop in the uterus of a…

Q: What is the relationship between the genotype and phenotype?

A: 1) GENOTYPE- It is the set of genes that we have inherited from our parents and will pass on these…

Q: What are the inheritable patterns of a dominant and recessive lethal allele? Is Huntington Disease…

A: A large proportion of genes in an individual's genome are very important for survival for life.

Q: What are inheritence of two genes?

A: Genes are basic units of inheritance. Gene is  a specific sequence of DNA which encodes specific…

Q: What are the different types of inheritance patterns?

A: Inheritance includes the process by which the offspring of an organism becomes predisposed to the…

Q: What is Down syndrome ? When does Down syndrome occur ?

A: Human genetic disorders are caused due to the absence or excess or abnormal arrangement of one or…

Q: What do you already know about the difference between dominant and recessive traits? Or sex-linked…

A: Difference between dominance and Recessive traits: Dominance traint : 1) Dominance evolve are…

Q: Two people heterozygous for Tay-Sachs (recessive disease) have two children who are both normal.…

A: Tay-Sachs is a genetic disorder. It is inherited only when both parents carry the gene for…

Q: What is the relationship between non-disjunction, changes in chromosome number and miscarriage?  Why…

A: Chromosome abnormalities are of 2 types viz. numerical, where an individual has abnormal number of…

Q: Aren’t traits such as earlobe shape and dimples due to dominant and recessive alleles?

A: The DNA is the hereditary unit of an organism. The genes are composed of DNA  which is passed on…

Q: How many copies of a gene does the other parent contribute to each of the offspring?

A: Genes are responsible for the expression of traits. If genes have multiple copies, they are referred…

Q: How Are Sex and Sex- Linked Traits Inherited?

A: The traits in which the genes are located on either of the two sex chromosomes are called sex-linked…

Q: Why are some alleles dominant and some recessive?

A: A short-portion of the DNA is termed as a gene. The genes are the essential functions as well as…

Q: What are the effects of aneuploidy?

A: Aneuploidy refers to losses or gains of individual chromosomes from the normal set of chromosomes.…

Q: What are genetic disorders? Give some examples?

A: Gene is the basic unit of heredity. It is mainly expressed in the form of nucleic acids in both…

Q: Can a woman who is affected by an X-linked dominant disorder have a child who is not affected? Why…

A: In physiology, X-linked dominant disorder is defined as genetic disorder occurs due to X chromosome…

Q: How Are Single Traits Inherited?

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

Q: What is Codominance inheritance?

A: The genetics is the branch of biology that deals with the study of genes, genetic variation and…

Q: Are dominant traits always more common than recessive traits? Why or why not?

A: Traits in the humans and other organisms can be dominant or recessive . A dominant trait covers…

Q: What are Sex-limited traits?

A: What are Sex-limited traits - sex limited traits or characters are present only in one kind of sex…

Q: Why do extra copies of genes sometimes cause drastic phenotypic effects?

A: The genes are the hereditary unit of an organism which are passed on from the parental generation to…

Q: What are chromosomal disorders?

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

Q: How is the inheritance of genes related to protein synthesis and the expression of traits in the…

A: The genetic material of an organism contains all the information about the organism. This genetic…

Q: What are Autosomal Dominant and Autosomal Recessive?

A: Genes are made of nucleic acids called DNA. The variant forms of genes are called alleles. The…

Q: What causes Extrachromosomal inheritance?

A: Inheritance or heredity is passing-on one trait form the parents to the progeny by either asexual or…

Q: What are recessive conditions? What are dominant conditions? Why are recessive conditions more…

A: Individuals receive two versions of each gene, known as alleles, from each parent. If the alleles…

Q: What are various kinds of twins?

A: Pregnancy is also termed as gestation during which one or more offspring develop in the uterus of a…

Q: What are the two types of twins and how do they arise?

A: The period from conception to birth is called pregnancy. When an egg is fertilized by a sperm, the…

Q: What are twins? Genetically, what are the two types of twins that can occur?

A: Introduction In this question we have to define twins and have to discuss about the types of twins,…

Q: How does the pedigree of an autosomal recessive trait differ from the pedigree of an X-linked…

A: Introduction Pedigree Analysis: this is the new approach to study the inheritance pattern in the…

Q: What are the sex-linked disorders that are inheritable?

A: The X and Y chromosomes are defined as the sex chromosomes in humans. A female has two X…

Q: How is it that genetic abnormalities that include an extra Y chromosome do not have a severe…

A: Genetically all human males normally have a XY chromosome whereas the females have a XX pair. They…

Q: What is controlled by multiple genes?

A: The nucleotide sequence of the deoxyribonucleic acid (DNA) that controls a particular trait is…

Q: What are the complex patterns of inheritance?

A: Some traits ,unlike discrete trait of Mendel's studies, display a range of phenotypes that cannot be…

Q: How can you distinguish between an autosomal recessive trait with higher penetrance in males and an…

A: Autosomal and sex-linked traits exhibit distinct features in pedigree analysis.

Q: What genetic disorder is this, what causes it and how does it impact life?

A: Karyotype is the pictorial representation of chromosomes. Identification and evaluation of size,…

Q: What are some diseases orgenetic abnormalities causedby recessive genes?

A: A disease is an abnormal condition that negatively impacts the structure and function of an…

Q: What does double homozygous mean?

A: The alternate form of gene is known as allele. Allele are of two types, namely dominant allele and…

Q: What is monosomy ?

A: A chromosomal aberration is a change in a child's genetic material or DNA that affects the…

Q: What are the possible effects of chromosomal mutations?

A: Malfunctioning of the kinetochore can lead to a chromosomal abnormality that is known as…

Q: Can males be a carrier of an X-linked recessive trait? How about females?

A: A characteristic that is sex-linked is one in which a gene is situated on a sex chromosome. In…

Q: How does a specific gene affect phenotype?

A: Phenotype is defined as the physical properties that are observed in an organism. Thus, the…

Q: What causes quantitative inheritance?

A: Quantitative Inheritance deals with the inheritance of single phenotype characters, controlled by…

Q: What are three similarities and three differences between Autosomal Dominant and Autosomal…

A: Patterns of inheritance in people incorporate autosomal strength and recessiveness, X-connected…

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.