In a disorder that has autosomal recessive inheritance pattern, what is the risk of one carrier and one affected parent having an affected child with that disorder? What percentage would that be?

Q: AGGTATCGCAT is a sequence from the coding strand of a gene. What will bw the corresponding sequence ...

A: The terms used in the question represents the molecules used during a gene expression. A gene is a s...

Q: How do mutagens cause mutations?

A: Mutations are the alterations or the changes that occur in the DNA. Mutations are variations in codo...

Q: Name the source from where leather is obtained.

A: Living beings on the earth obtain several resources from nature. It includes the products obtained f...

Q: Dinoflagellates and provide nutrients from the products of photosynthesis to the corals in exchange ...

A: Symbiotic relationships: Symbiosis is a type of close and long term relationship between two differe...

Q: What effect does crossing over have on linkage?

A: Linkage is a tendency of the genes present on a chromosome to remain linked together and also passed...

Q: In catalyzing the methylation or pseudouridylation of an rRNA, asnoRNA functions asa. a decoy.b. a s...

A: SnoRNA (small nucleolar RNA) is abundantly present in nucleolus and carries the modification of ribo...

Q: In which period of life doesthe formation of gametesbegin in women?

A: Gametes are reproductive cells. In male it is known as sperm and in female it is known as egg or ovu...

Q: How does a cecal animal comparewith a ruminant?

A: Ruminants are mammalian animals that are foregut fermenters. Some of them are domestic animals. The ...

Q: Define (a) Genus (b) Family (c) Order.

A: Classification of organisms is necessary to know the extent of evolution. It categorizes organisms o...

Q: A set of HeLa cells is being considered for an experiment. When these cells are analyzed using a mac...

A: HeLa cells refer to a line of cells belonging to a strain that has been continuously cultured since ...

Q: Name the type of joint between phalanges?

A: A joint or articulation is the connection made between bones in the body, which links the skeletal s...

Q: 7. ………. is the lipoprotein that transports mostly cholesteryl esters through the blood A. LDL B. VLD...

A:   All the Lipoproteins play vital role in transporting Cholesteryl Esters (CE)through blood however ...

Q: As a level 100 nursing student, you have been  assigned  to the isolation ward where patients diagno...

A: Personal protective equipment (PPE) Protective clothing that is made to protect health care workers...

Q: Explain the process of duplication and divergence from an ancestral gene?

A: Gene duplication is an essential phenomenon for the acquisition of new genes and creating genetic di...

Q: What type of bonding interaction causes stem-loops to form?

A: Stem loop is also known as hairpin loop structure. It is an intramolecular base pairing that general...

Q: What are the sense organs of Scoliodon?

A: The dogfish is also called Scoliodon and is a cartilaginous fish. These have an elongated spindle-sh...

Q: Briefly explain how patterns of DNA methylation are transmitted across cell divisions.

A: DNA methylation is a biological mechanism that attaches methyl groups to DNA molecule. Methylation c...

Q: How do chaperones assist the Escherichia coli cell to makenitrate reductase?

A: In molecular biology, chaperones are specific proteins which assist the conformational folding or un...

Q: Name various parts of the brain and state functions of each part.

A: The human body is a well built machine in which all the organs coordinate together to make it work. ...

Q: If an organisms that is a mixotroph loses its plastids, it survives because   A. It has an end...

A: Mixotrophs-Those organisms that combine autotrophy (self dependant on food production) and heterotro...

Q: What is the difference between eukaryotes and prokaryotes in terms of primary transcripts?

A: Primary transcript is the immediate product of transcription. In the process of transcription of DNA...

Q: Why is the adenovirus terminal protein essential for replicatingits genome?

A: Adenovirus is a DNA virus and contains a double-stranded DNA as its genome.

Q: Describe how stress affects immune responses.

A: Stress is any emotional or mental tension, strain or pressure that may arise because of any of the a...

Q: What are the functions of mandibles?

A: The human skeleton consists of 206 bones. It is the structural framework of the body. The skeleton i...

Q: Describe enzymes that are not found in most cells but are necessary forthe replication of certain ty...

A: A virus is a submicroscopic infectious particle that replicates only inside the living cells of an o...

Q: Why are microbial cells useful tools for basic science?

A: Microorganisms are minute organisms that are not visible to naked eyes and can only be seen under th...

Q: After you eat lunch, nerve cells in your stomachrespond to the distension (the stimulus) resulting f...

A: Stomach is a muscular organ which is made up of smooth muscle cells. It is found on the left side of...

Q: Species of Chlorella Algae Lipid content (% dry weight biomass) Vulgaris 50 Protothecoides 15 Soroki...

A: Chlorella is a type of green algae which has been used as a supplement. It is great source of fats, ...

Q: Interpret phenotypic ratios of progeny to infer how particular traits are inherited

A: Genes are the structural, physical, and functional unit of heredity that allows the flow of genetic ...

Q: Why is a β-lactoglobulin promoter used?

A: Promoters are the DNA sequences present at the beginning of a gene. A promoter is the site at which ...

Q: Phenylketonuria (PKU) is an autosomal recessive disease that results from a defect in an enzyme that...

A: Phenylketonuria is an inborn error of metabolism which happened due to decreased or low metabolism o...

Q: Please fill in missing DNA/RNA/Amino Acid sequences.

A: DNA: DNA is the basic unit of life.The information here  is stored as a code which is made up of fou...

Q: Name the valve present in the opening of inferior cava.

A: Inferior vena cava is the largest vein in the human body that is responsible for carrying deoxygenat...

Q: Can mitosis occur in haploid (n) cells? And in triploid cells?

A: Mitosis is a type of cell division that occurs in all somatic cells and results in two diploid ident...

Q: If you were using cladistics to build a phylogenetic tree of cats,which of the following would be th...

A: A phylogenetic tree is a diagram that represents evolutionary relationships among organisms. The pat...

Q: Energy requirements of the kidney are very high. Comment.

A: The excretory system is the system that performs excretion, the bodily process of discharging wastes...

Q: The function of the genetic code is toa. promote transcription.b. specify the amino acids within a p...

A: Genetic code is a set of rules used by living organism’s cells in the process of translation that is...

Q: Describe the pathology of arboviral disease.

A: A disease is a particular abnormal condition that negatively affects the function or structure of al...

Q: What are the possible sources of Salmonella spp.that cause food infections?

A: The food poisoning caused by the species of this bacterium leads to a very serious form of poisoning...

Q: What are the generalfunctions of the connectivetissues?

A: Connective tissues are specialized tissues that are responsible to bind or connect various structure...

Q: Describe the classes of antibacterial drugs that act on DNA orRNA, and characterize their uses.

A: Antibacterial drugs refers to those chemical substance that are derived from biological sources or p...

Q: Herpetic whitlows are ____________ infections of the __________ .a. pox, oral cavity b. CMV, lymph n...

A: A virus is a submicroscopic infectious particle that replicates only inside the living cells of an o...

Inheritance and Mendelian Genetics

Inheritance means the passing of traits to offspring from parents. These traits could be passed either through asexual reproduction or sexual reproduction. The offspring receives the genetic material from the parents. Mendelian inheritance is a certain biological inheritance that follows the rules and principles laid down by Gregor Mendel in 1865. The initial hypothesis was considered wrong, but other inheritance theories modified the concept of inheritance and thus genetics.