. In a diploid organism of 2n = 10, assume that you canlabel all the centromeres derived from its female parentand all the centromeres derived from its male parent.When this organism produces gametes, how many maleand female-labeled centromere combinations are possible in the gametes?

Q: Common red clover, Trifolium pratense, is a diploidwith 14 chromosomes per somatic cell. What…

A: Ploidy is the change in the number of chromosomes among organisms. It can be distinguished into two…

Q: . A white-eyed female Drosophila is mated with a redeyed (wild-type) male, the reciprocal cross of…

A: Dominant and recessive traits exist when a trait has two different forms at the gene level. The…

Q: . In yellow fever mosquitos (Aedes aegypti) 2n=6. In a mosquito cell that is going through mitosis,…

A: Meiosis is the cell division process that results in the formation of egg and sperm cells. Mitosis…

Q: What is the probability that, in an organism with a haploid number of 10, a sperm will be formed…

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

Q: A young couple is planning to have children. Knowing that there have been a substantial number of…

A: Robertsonian translocations are defines as the structural chromosomal abnormalities that is caused…

Q: Explain the two major mechanisms by whichchromosomal rearrangements take place.

A: The breaking and reassembling of chromosomal segments accompanying evolution that can occur within…

Q: Describe some syndromes that result from chromosomal nondisjunction?

A: Nondisjunction of chromosome: - During cell division, it is the failure of separation of homologous…

Q: explain partial tetrasomy 14

A: Tetrasomy is defined as a condition of aneuploidy, in which there are four copies of a particular…

Q: Given the end results of the two types of division, why is it necessary for homologs to pair during…

A: Cell cycle is a series of changes that occurs in a newly divided cell through which it duplicates…

Q: Chromosomal nondisjunction of the X chromosome in female gametes of humans means that live offspring…

A: Nondisjunction of  X chromosomes during meiosis I will result in four abnormal gametes. Two gametes…

Q: At the end of Meiosis II in human cells (specifically in males, for example), how many gametes are…

A: In a normal cell there are 46 chromosomes that is 23 pairs of chromosomes are there out of which one…

Q: In a sample of 1000 patients with Down syndrome, a geneticist discovers that 95% of them are…

A: Trisomy is a kind of polysomy in which three instances of a particular chromosome occurs. Generally…

Q: Two phenotypically normal parents produce a phenotypicallyabnormal child in which chromosome 5 is…

A: The thread-like structure present inside the nucleus is called a chromosome. The chromosome is…

Q: A person with Down syndrome has three copies of chromosome 21. Which of the following words should…

A: Triploid is used for defining the genomic content of an organism so, here the genomic content is 3n.…

Q: A man who is a carrier of a translocated 15/21 chromosome marries a genotypically normal woman.…

A: Synapsis  It is the pairing of two homologous chromosomes during early stage of meiosis.

Q: Explain how nondisjunction produces monosomy and trisomy chromosomeconditions.

A: Mitosis: A type of cell division in which parent cell gives rise to 2 identical daughter cells with…

Q: A wild-type chromosome has the following segments: A B C • D E F G H I Researchers have found…

A: They coil under the light microscope during prophase I and become shorter and thicker and more…

Q: How many Barr bodies are contained within the nucleus of a person with Monosomy X? In the nucleus of…

A: Introduction:- The X chromosome is shared by both males and females. Female somatic cells do not…

Q: Consider Cyclic Crossover on two Parent chromosomes: Parent1 = A0846172593B and Parent2 =…

A: The child chromosome will be... chromosome no 1 is... A94B5721608A chromosome no 2 is...…

Q: chromosome of genotype   C D recombines with a homolog of genotype   c d during meiosis when Spo11…

A: * Given that chromosome of genotype  "CD"  recombines with a homologous of genotype  "cd" during…

Q: A man who is a carrier of a translocated 15/21 chromosome marries a genotypically normal woman. a.…

A: The condition is termed Robertsonian translocation.  Explanation: Every individual has his / her…

Q: specific human individual with a male sex has the same sex chromosome complement as a metafemale…

A: Metafemale: 3 sets of X chromosomes or in other words an extra X chromosome with autosomes

Q: In a species with 2N of 10, how many chromosomes are in a autotriploid?

A: *Polyploidy: Having multiple sets of chromosomes Ex. Triploid 3n , tetraploid 4n *Autotriploidy ( 3n…

Q: A chromosome with the following gene order has a paracentric inversion of BCDE. A B C D E F • G H If…

A:

Q: Explain how aneuploidy, deletions, and duplications cause geneticimbalances. Why do you think that…

A: Chromosomes carry the genetic material DNA. Chromosomes may undergo rearrangements that are the…

Q: A young couple is planning to have children. Knowing that there have been a substantial number of…

A: Robertsonian translocation is a kind of chromosomal abnormality in which two acrocentric chromosomes…

Q: Explain why autosomal aneuploidy is generally more deleterious than aneuploidy for sex chromosomes.

A: Genetics is a branch of science that deals in the study of genes, heredity, and genetic variation of…

Q: . A woman with Turner syndrome is found to be colorblind (an X-linked recessive phenotype). Both her…

A: Turner syndrome is a chromosomal disorder that impairs women's development. Half of the sex…

Q: Explain why small deletions and duplications are less likely tohave a detrimental effect on an…

A: A mutation is a permanent change in the DNA of a cell such that the sequence deviates from what is…

Q: . When a cell of genotype A/a ; B/b ; C/c having all thegenes on separate chromosome pairs divides…

A: In the process of mitosis, the daughter cells that are produced will have the same genotype.

Q: Progeny of triploid tomato plants often contain parts of an extra chromosome, in addition to the…

A: Triploidy is a rare chromosomal abnormality in which the organism has an extra chromosome in their…

Q: Describe the imbalance in gene products that occurs in an individual with monosomy 2.

A: Chromosomes are carrier of deoxyribonucleic acid (DNA). DNA is the genetic material. Each species…

Q: Describe the Principles of Segregation and Independent Assortment in terms of Genetics. How do these…

A: The law of segregation describes how two alleles governing a single trait separates randomly during…

Q: A cross is made in tomatoes between a female plant thatis trisomic for chromosome 6 and a normal…

A: In genetics, a cross is the result of mating two parents with different genes, resulting in…

Q: company that offers PGD terms an embryo “normal and healthy” if it has 46 chromosomes. Why is this…

A: Genetic testing of in vitro embryos is a strong technology where a small number of cells are…

Q: Two phenotypically normal parents produce an abnormal son in which chromosome 14 is missing part of…

A: Translocations are chromosomal rearrangements caused by the exchange of components between two…

Q: With two pairs of homologous chromosomes, four kinds of gametes can be produced. How many kinds of…

A: Gametes are formed by the process of meiosis in the gamete mother cells.

Q: Why do you think that humans with trisomy chromosome 13, 18,or 21 can survive but other trisomies…

A: There are 23 pairs of chromosomes in which 22 pairs are the autosome and 1 pair is sex chromosome.…

Q: What kind of chromosomal mutations is/are produced by unequal crossing over?

A: Chromosome mutations are changes that arise in chromosomes as a result of nuclear division mistakes…

Q: Progeny of triploid tomato plants often contain parts of an extra chromosome, in addition to the…

A: Triploidy is a rare chromosomal abnormality in which the organism has an extra chromosome in their…

Q: What process occurs when genes swap position on a chromosome during meiosis, as in the case of Cru…

A: Meiosis is a cellular process where a single cell divides two times to produce four cells containing…

Q: why Monoploids as well as polyploids containing odd numbersof chromosome sets are usually sterile?

A: The changes in the chromosome are of two kinds that involve changes in the complete set of the…

Q: discuss briefly  The genetics of triploidy

A: Triploidy is a rare chromosomal abnormality. It is the presence of an additional set of chromosomes…

Q: Two phenotypically unaffected parents produce two children withfamilial Down syndrome. With regard…

A: Chromosomal aberrations include changes in the structure and number of chromosomes. Thus, meiosis…

Q: The karyotype of a young girl who is affected with familialDown syndrome revealed a total of 46…

A: Translocation is the exchange of genetic material between the chromosomes and can be balanced and…

Q: How many chromosomes are there in the somatic cells of a newborn boy with: a. The cri-du chat…

A: Chromosomes are responsible for our inherited characteristics . Any abberation in chromosome no. Or…

Q: phenotypically normal woman has an abnormally structured chromosome 2, along with a normal…

A: Probability of woman passing down abnormally structured chromosome 2  is 1/2 Woman ----- 1/2…

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: