When there is one extra chromosome due to non- disjunction, it is called trisomy. In such a case, the gamete has one extra chromosome of a homologous pair. In Jacob's syndrome, the extra chromosome is present in Ox chromosome OY chromosome O chromosome number 13 chromosome number 18

Q: For a hexaploid what is the value of n where  n refers tothe number of chromosomes in a gamete

A: In most animals and eukaryotic organisms, there are two copies of autosome. This condition is known…

Q: A chromosomal abnormality where the entire set is either increased or decrease in number. ○…

A: Ploidy is the count of chromosomal sets in a cell or organism. Humans and many other species often…

Q: In humans, XO individuals are females with Turner syndrome and XXY individuals are males with…

A: The failure of homologous chromosomes (sister chromatids) to separate properly during cell division,…

Q: Given that the gene for the color-blind condition is recessive and X-linked. You have a female with…

A: Maternal parent has a nondisjunction at Meiosis1 or 2

Q: A parent has the genotype PpLl for two independently assorting genes. What are all the possible…

A: According to Mendel's independent assortment law, the parent who has the genotype PpLl for two…

Q: A female is heterozygous for an X-linked gene.  If nondisjunction happens for the sex chromosomes…

A: Introduction :  Aneuploidy is the term used to describe a cell that has an abnormally high/low…

Q: The presence of an extra chromosome is called: 1. Mosaicism 2. Trisomy 3. No disjunction…

A: Chromosomes square measure thread-like structures settled within the nucleus of animal and plant…

Q: %3D 18 2> 22

A: A karyotype is the collection of an individual's chromosomes and their appearance under a light…

Q: identify and label the chromosomes number (1-22). also, identify if it is male or female by labeling…

A: A karyotype is a preparation of the entire complement of metaphase chromosomes found in a species or…

Q: Two parents who do not have color blindness have a daughter who has only one X chromosome and is…

A: The event of nondisjunction occurs when the chromosomes fail to separate during the process of…

Q: An individual that is homozygous AABBcc is crossed to an individual that is homozygous aabbCC…

A: A chromosome is a highly condensed form of DNA and It wrapped into Nucleosomes. Humans have 22…

Q: A color-blind woman with Turner syndrome (XO) has a father who is color blind. Given that the gene…

A: Given that the gene for the color-blind condition is recessive and X-linked and a color-blind woman…

Q: This combination of sex chromosomes typically produces human males: Xy XX

A: Humans have two sex chromosomes. Sex chromosomes are those which is different from an ordinary…

Q: e (ebony) gene is an autosomal gene in Drosophila melanogaster. A male ophila has the genotype of…

A: Gametes produced will be of four types   I.e 2n where n is the number of heterozygous allele. Here…

Q: A phenotypically normal individual has the following combinations of normal and abnormal…

A: Chromosomal deletion is simply deletion of the part of the chromosome. Chromosomal inversion is a…

Q: What are possible  gametes of a heterozygous  round yellow parent  R (red) r (brown) Y (pink) y (…

A: Gamete It is a sex cell, a haploid egg or sperm. It is one of the differentiated cells that is a…

Q: The following Pedigree shows an unknown genetic disorder. The disorder is believed to be caused by…

A: In terms of genetics, a pedigree is a diagram demonstrating the manner in which a trait or medical…

Q: List some syndromes that result from inheritance of anabnormal sex chromosome number

A: Sexual defects in chromosomes are sex-specific. Normal males inherit a chromosome of X and Y, while…

Q: A women is heterozygous, Aa, for classic albinism and this gene maps to chromosome 11, and is a…

A: Oogenesis is the process of formation of female gametes called ovum or egg. The development of eggs…

Q: A condition where the number of chromosomes is beyond diploid is referred to as

A: Diploid condition refers to having two sets of genetic material or choromomes. It occurs usually in…

Q: Primary oocytes in females are O dipoid and undergo mitosis O dplcid and undergo meiosis O haploid…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: A transfer of genes between non-homologous chromosomes is known as   aneuploidy   crossing over…

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

Q: Vhich of the following chromosomal rearrangements usually results in normal eiosis? translocation…

A: Chromosomal rearrangement, also known as DNA crossover, occurs during pachytene stage of first pro…

Q: The gene associated with the recessive disorder nemophilia is on the X chromosome, where n is the…

A: Option B

Q: A diploid cell with three pairs of homologous chromosomes is shown on the left. Each letter…

A: Mitosis and meiosis are the two different types of cell division. Meiosis occurs in normal somatic…

Q: Syndrome: ?? Number of autosomes and sex chromosomes: 45 Classification of abnormality: Numerical…

A: The abnormality in a chromosome is called chromosome abnormality. The male and flame contribute an…

Q: List the alleles in cach of the gametes crcated at the cnd of meiosis, (Write the number for 2/4…

A: Cell division occurs in all the cells of the body and this process is of two types: Mitosis is the…

Q: Explain why sex linkage is generally associated with X chromosomes and not Y

A: The genes located in the X chromosomes exhibit what is known as sex-linkage or crisscross…

Q: The X and Y chromosome will not be the same size. What are the implications of this with respect to…

A: Most Y chromosomes do not undergo standard recombination. But .there is a single obligatory…

Q: Polyploidy occurs when the chromosome number is increased or decreased by a multiple of the diploid…

A: Polyploidy is the heritable condition in which more than two sets of chromosomes are present.…

Q: Male humans are considered for genes found on the X chromosome. hemizygous heterozygous homozygous O…

A: Introduction :- There are two main subtypes of individuals that are present in a population - 1.…

Q: Use the chromosome image, where the letters represent genes, to match the statements with their…

A: Crossing over is a process where the few segments of genes are exchanged between two homologous…

Q: If this happens in Meiosis I, it results in two gametes that are n + 1 and two gametes that are n -1

A: The result of a normal mitosis or meiosis is that all the progeny cells receive a complete set of…

Q: The following letters indicate the pairs of alleles present on a homologous chromosome pair within…

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

Q: Complete the following statements about the purpose of meiosis, autosomes, and sex chromosomes. Not…

A: In organisms that reproduce sexually, meiosis is a unique form of cell division of germ cells which…

Q: Which level of pollution would you invest time and resources into restoring, and why?

A: "Unhealthy" AQI is 151 - 200. Everyone may begin to experience some adverse health effects, and…

Q: Sue's chromosome #18 pair looks like this: Bob's chromosome #18 pair looks like this: Bob and Sue…

A: In non disjunction, there is failure in separation of chromatid. This non disjunction can cause…

Q: Which phase of meiosis explains Mendel's Law of Segregation? Anaphase I Anaphase I| O Metaphase II O…

A: Answer. Meiosis is a type of cell division that occurs in germ cells that reduces the number of…

Q: Which of the following is true for autosomal recessive alleles associated with a disease? One copy…

A: Traits can be autosomal or sex linked and dominant or recessive.

Q: all of his sons   all of his daughters   half of his daughters and half of his sons   half of his…

A: X- inactivation or lyonization is a process in which one of the X- chromosome is inactivated in…

Q: Which non-disjunction event has more chromosome number aberrations? Why?

A: Meiosis is a reductional division. It produces haploud gametes.

Q: Duchenne muscular dystrophy (DMD) is caused bya recessive mutant allele of an X-linked gene…

A: Duchenne muscular dystrophy (DMD) is a progressive form of muscular dystrophy that results in muscle…

Q: The Yellow Fever mosquito has 2N number of 6 chromosomes and a Yellow dung fly has 2N numberof 12…

A: Cells are the biological, structural and functional unit of an organism. Cell has a nucleus that…

Q: What are the possible gametes from the following individual and in what proportions would each…

A: Gametes are formed through meiosis which is a reduction division, in which a germ cell undergoes two…

Q: An individual with XY chromosomes produces gametes where 50% have an extra sex chromosome and 50%…

A: Please follow step 2 for detailed explanation.

Oogenesis

The formation of the ovum (mature female gamete) from undifferentiated germ cells is called oogenesis. This process takes place in the ovaries (female gonads). Oogenesis consists of three stages known as the multiplication phase, growth phase, and maturation phase. 

Cell Division

Cell division involves the formation of new daughter cells from the parent cells. It is a part of the cell cycle that takes place in both prokaryotic and eukaryotic organisms. Cell division is required for three main reasons: