describe Full trisomy 18

Q: Sex determination of child is done by whose chromosome?

A: Chromosomes are the thread like structures which are located in the nucleus. There are 23 pairs of…

Q: Explain why a triploid individual is usually infertile?

A: The individual having three sets of haploid chromosomes (3n) is termed as triploid. Triploid…

Q: If a dog cell (2n = 78) enters meiosis, how many chromosomes will be present in each daughter cell…

A: In Meiosis process , two divisions are involved that are Meiosis 1 and Meiosis 2.

Q: Describe how nondisjunction results in aneuploidy disorders, and describe the syndrome/ symptoms/…

A: Nondisjunction means the failure of homologous chromosomes or sister chromatids to separate during…

Q: Explain the meaning of diploid.

A: The cell is the basic structural and functional unit of our body. It carries out many functions in…

Q: List the three principal mechanisms that generate new genetic combinations in meiosis.

A: The cell goes through cell cycle, which is a sequence of cell growth and duplication by the…

Q: explain how Errors in meiosis cause aneuploidy.

A: Meiosis is a type of cell division in which a single parent cell produces four daughter cells.…

Q: Briefly explain what 2n=12 means in terms of mitosis and meiosis.

A: Mitosis is that type of cell division in which each cell undergoes division to form 2 daughter…

Q: Explain how triplets are created naturally (without medical intervention during prenatal…

A: Sexual reproduction is the specialized process in which two distinct individuals participate and…

Q: non-disjunction and explain if it matters if it happens during meiosis I or meiosis II.

A: Meiosis is a type of cell division (CD) where four gametes or daughter cells are produced as a…

Q: Can a trisomic A/A/a ever produce a gamete of genotype a?

A: Gamete- these are the cells that are capable of producing a new organism. These are the haploid…

Q: Draw a Punnett square for a female who is a heterozygote and a male who is a dominant homozygotes.…

A: Genes are hereditary units in the DNA. These genes can be present in two versions called "dominant"…

Q: Draw and label a 2n=4 cell going through anaphase II of meiosis.

A: Eukaryotic cells in advanced multicellular organisms undergo two types of cell divisions - mitosis…

Q: Why is meant by sex-linked inheritance? Give few examples in man.

A: Sex linked inheritance is the inheritance of a trait (phenotype) that is determined by a gene…

Q: briefly describe how chromosomal disorders happen, explaining non disjunction

A: Chromosomal disorders are of two types -  1.Aneuploidy - It arises due to the addition or deletion…

Q: explain the Nondisjunction during second meiotic division

A: The cell cycle is a flow of events that consists of cellular division as well as cell growth. This…

Q: raw out meiotic divisions that could result in trisomy, assuming that the error occurred during…

A: Trisomy situation in the zygote represents that the cell contains 1 extra chromosome (2n+1)   This…

Q: How many different gamete combinations can be produced from a Yy Ss Hh genotype?

A: Gametes are an organism's reproductive cells. They are also referred to as sex cells. Female gametes…

Q: What is Trisomy 20?

A: The chromosome 20 likely has more than 500 genes which provide the instruction for the making of…

Q: Draw the chromosomes of each daughter cell after Meiosis II:

A: Meiosis is the cell division process that results in the formation of four genetically distinct…

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.