The X and Y chromosome will not be the same size. What are the implications of this with respect to crossing over?

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: Bob has XXY chromosomes (Klinefelter syndrome) and is color blind. His mother and father have normal…

A: Colorblindness is an X-linked recessive disorder. Klinefelter syndrome is the presence of two copies…

Q: explain the Nondisjunction during first meiotic division

A: The process in which the diploid cell produces haploid gametes is called meiosis. The chromosomes…

Q: For a couple, what is the significance of knowing chromosomal aberrations?

A: Chromosomes are thread-like structures present inside the nucleus of the cell. They are made up of…

Q: Why are newborns with an abnormal sex chromosome number more likely to survive than those with an…

A: Humans have a total number of 46 chromosomes that is 23 pairs of chromosomes in which 22 of them are…

Q: What phase of mitotic interphase is missing from meiotic interkinesis

A: The process in which duplication of the cell occurs and the resultant cell will be genetically the…

Q: If a genetic male failed to produce MIS during fetal life, what would the result be?

A: The Müllerian-inhibiting substance (MIS) is a protein that is secreted from the testes, which leads…

Q: The prenatal cells have" Aacc" type alleles, which gamete is not possible?

A: There are majorly three laws proposed by Mendel, which include law is Segregation that describes the…

Q: What does the sex chromosome genotype XXY produce in humans?

A: In humans, two sex chromosomes are there; X and Y. The sex of the individual depends upon the…

Q: true or false:  crossing over during meiosis is responsible for creating unique combinations of…

A: Meiosis or reduction division is a characteristic feature of all those plants and animals that…

Q: What is crossing over and how does it affect the outcome of meiosis?

A: Meiosis is a type of division in which daughter cells possess half the number of chromosomes of…

Q: if during normal division meiosis I does not occur, will meoisis II still proceed?

A: Meiosis This process involves the division of a single cell twice to form four haploid daughter…

Q: Although triple-X human females typically have normal offspring, what kinds of gametes, with respect…

A: Introduction In humans, the X chromosome is one of two sex chromosomes, the other is the Y…

Q: explain the results of crossing over?

A: Crossing over is the exchange of genetic material between non-sister chromatids of homologous…

Q: What does abnormal male karyotype mean?

A: A karyotype is the visual picture of number and morphology of chromosomes. It consists of analyses…

Q: Why is an X chromosome needed for survival?

A: The sex chromosomes or allosomes are X and Y chromosomes which determine the biological sex of an…

Q: Cross a female (XX) with a male (XY). Provide the genotypic and phenotypic ratio of the cross

A: Cross of a female (XX) and Male (XY) Female/Male X Y X XX (Female) XY (Male) X XX (Female) XY…

Q: What are the products of crossing over?

A: The process in which parent cells divide and produce two or more daughter cells is referred to as…

Q: What would be the genetic consequences for the gametes and offspring if crossing over occurred…

A: Sexual reproduction ensures diversity in nature. This diversity is mainly achieved due to the…

Q: What does the sex chromosome genotype XY produce in humans?

A: Sex chromosome, either of a pair of chromosomes deciding whether a individual is male or female.…

Q: Assume that a man who carries an X-linked disorder has children. Assuming normal meiosis and random…

A: X-linked disorders are of two types - X-linked recessive and X-linked dominant. In X-linked…

Q: In which parent and during which meiotic division did non-disjunction occur? If there is more than…

A:

Q: Crossing over gives genetic and happens during the stage of meiosis I.

A: Cell division happens when a parent cell divides into two or more daughter cells.  There are two…

Q: How come the conclusion came to be as half of the son and none of the daughter have precorious…

A: It is a condition in which a child's body changes in an adult too soon before pubery.

Q: Assuming that independence assortment occurs during meiosis what types of gametes will form…

A: Independent assortment is the separation of gene pairs independently from the other gene pairs.…

Q: What are the possible gametes for the following two parents? Father (Gghh) Mother (GGHH)

A: Meiosis is a type of cell division that reduces the number of chromosomes in the parent cell by half…

Q: Crossing over occurs during prophase Il of Meiosis.

A: Crossing over is essential for the normal segregation of chromosomes during meiosis. It is also…

Q: A man with blood type O marries a woman with blood type AB. What is the probability that their third…

A: Punnett squares are square diagrams made out of a grid of generally four boxes that are used to…

Q: A woman who is homozygous for normal color vision mates with a colorblind male. they produce a…

A: Color blindness is an X-linked recessive genetic disorder. In this disease, the person has less…

Q: what is Rare mitotic nondisjunction

A: Mitosis - Mitosis is a process in which one cell divides to form two new daughter cells. These two…

Q: At what stage of meiosis (I or II) does crossing-over occur?

A: Crossing-over is a process that occurs during meiosis (I or II) whereby homologous chromosomes…

Q: The gene can sometimes move to another chromosome, resulting in the development of XX males or XY…

A: Sex determination is defined as the biological process that determines what the sex of an individual…

Q: What is crossing over? How is meiosis related to this phenomenon?

A: Linked alleles, such as A-b and a-B, combine to form the gametes A-b and a-B, which are responsible…

Q: A diploid organism has five pairs of chromosomes in each somatic cell. Assuming that no crossing…

A: When the DNA molecule is well organized and packaged into thread-like structures in the nucleus of…

Q: If you ignore the effect of crossing over, would you expect the genetic information in the two…

A: Spermatogenesis results in mature male gametes, also known as sperm but more precisely as…

Q: Could a man with an O blood type be the father of an AB child? and why?

A: The man with blood type O cannot have a child with AB blood type.In blood types, the allele Io is…

Q: Meiotic nondisjunction is much more likely than mitotic nondisjunction.Based on this observation,…

A: Cells are the basic structural and functional unit of the organism. Cell division is the process in…

Q: What would be the sex of a human with each of the following setsof sex chromosomes?A. XXX C. XYYB. X…

A: BASIC INFORMATION Humans have 23 pairs of chromosomes out of which 44 are autosomes and 2 are sex…

Q: What is crossover? When does it happen? What are the consequences?

A: The cell cycle is the sequence of events that take place in the cell. The cell cycle has 4 main…

Q: Assuming no crossing over between the gene in question and the, when do alleles segregate during…

A: gene is present in different forms that are expressed in a phenotype; allele is a one of the…

Q: Trisomy 21, or Down's syndrome, is the result of which event occurring during the meiotic process?

A: Ans. A nucleus, where genetic material is contained in genes, is located on every cell in the human.…

Q: The genotype AABBCcDD will have the following gametes

A:

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: what is Meiotic Nondisjunction?

A: Meiosis is also known as a double division that occurs in a diploid cell and gives rise to four…

Q: How many different kinds of gametes will be expected by an individual with the following genotype…

A: Mendel proposed three laws of inheritance. These laws are – Law of dominance, Law of independent…

Q: If the gene is linked to the "Y" chromosome, women will not have the disorder. Why?

A: Introduction In the nucleus of the cell DNA is packed in a thread like structure called chromosome.…

Q: What does the sex chromosome genotype XYY produce in humans?

A: A type of genetic condition where a male has an extra Y chromosome, is called an XYY syndrome. This…

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.