In 1-3 sentences each define the follwing terms:  genetic linkage, crossing over, X-inactivation, aneuploidy, polyploidy, nondisjunction

Q: Draw the stages of meiosis using three pairs of chromosomes

A: Meiosis is a cell division process where a single cell divides twice to produce four cells…

Q: Any deviation in the number of chromosomes that involves individual chromosomes, as opposed to…

A: Chromosomes are structures that are composed of DNA. Genes are located within chromosomes. During…

Q: For a species with a diploid number of 36, indicate how many chromosomes will be present in the…

A: Haploid: Having only one set of chromosomes, i.e, n-chromosomes. Triploid, Tetraploid is a condition…

Q: Draw a simple sketch illustrating how nondisjunction in meiosis can lead to Down syndrome.

A: To draw: A simple sketch illustrating how nondisjunction in meiosis can lead to Down syndrome

Q: which genetic disorder matches below descriptions. extra 21st chromosome attaches to chromosome 14.…

A: Genetic disorder is defined as the disease caused by the abnormality in the genome of an organism.…

Q: . All the genes on one chromosome are said to form aa. chromosomal group.b. recombination group.c.…

A: All the genes on one chromosome are linked together on a continuous DNA (deoxyribonucleic acid)…

Q: Here is a situation in which there is a repeated sequence. This picture shows two homologous…

A: Chromosomal crossover explains the exchange of genetic material while sexual reproduction between…

Q: complete the table. answer as a list a,b,c,d parent ploidy of parent(2n, etc) all possible gametes…

A: Diploid cells contain two copies of each chromosome and tetraploids contain four copies of each…

Q: What are chromosomal disorders? Also gives a suitable example.

A: The chromosomes are thread-like structure located in the nuclei of both plant and animal cells. They…

Q: Explain how an individual can have Down's Syndrome, and a karyotype that reveals 46 chromosomes.…

A: A genetic disorder is a condition that is caused in whole or in part by a deviation from the…

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: 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: Describe a chromosomal deletion, duplication, translocation, and inversion.

A: Chromosomes are string-like designs situated inside the nucleus of animals and plant cells. Every…

Q: What event of meiosis explains the chromosome theory of inheritance and the law of independent…

A: Chromosome theory of inheritance supports Mendel's laws.Observations are  - During the process of…

Q: Locus heterogeneity means that a genetic disordera. has a heterogeneous phenotype.b. is caused by…

A: The correct answer is (a) has a heterogeneous phenotype.

Q: The image shows the karyotype of someone suffering from Patau syndrome. 2 3 4 5 6 7 8 10 11 12 13 14…

A: Answer b- chromosome set 13. In This karyotype there is an extra copy of chromosome 13.

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: Write the name of the term that describes the phrase. Possessing all of the normal number of…

A: Introduction  Any cell contains the specific number of chromosomes and it is referred to as ploidy…

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

A:

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: The phenotype of the affected offspring will often allow geneticists to determine in which parent…

A: Meiosis is the production of four genetically diverse haploid daughter cells from one diploid parent…

Q: Draw a pair of chromosomes as they would appear during synapsis in prophase I of meiosis in an…

A: In chromosomal duplication, some of the part of chromosome has been doubled up. In duplication, the…

Q: Draw and describe FIVE (5) types of chromosome structural changes

A: After the birth or during the fetal development of zygote or during spermatogenesis or oogenesis…

Q: By using a diagram illustrate the condition that leads to Down syndrome (2n=47,extra copy of…

A: Down syndrome is congenital autosomal genetic disorder due to the trisomy 21 number  chromosome,…

Q: Define nondisjunction and explain how it causes aneuploidy. Name two syndromes resulting from…

A: The chromosome is the package of densely packed chromatin fibers with DNA and histone proteins. In…

Q: How will the offspring be affected if one of the gametes or one of the parents carries an impaired…

A: Any syndrome marked by deformities or malfunctions in any of the body's systems and caused by an…

Q: A dicentric chromosome is produced when crossing over takes place in an individual heterozygous for…

A: The thread-like structure that transfers from one generation to another present in the nucleus of…

Q: Draw a haploid mitosis of the genotype a+ ; b.

A: Mitosis and meiosis are two kinds of cell division in which chromosomes are segregated into daughter…

Q: A person is born with one X chromosome, zero Y chromosomes,trisomy 21, and two copies of the other…

A: A chromosome is a compact structure of a DNA molecule wrapped around some proteins. It is generally…

Q: in a robertsonian translocation the formation of viable gametes depends on

A: Robertsonian translocations are found in humans in the five acrocentric chromosome pairs (chromosome…

Q: a. Draw the structure of the acentromeric chromosome using a line and letters to designate loci in…

A: A homologous sets of chromosomes comprises of one chromosome from each parent. During the majority…

Q: Given the following frequency, what is the sequence of the chromosome map? D-A: 6%; D-E: 12%; V-E:…

A: A chromosome is a compact structure of a DNA molecule wrapped around some proteins. It is generally…

Q: In 1-3 sentences each define the following terms:  penetrance, expressivity, karyotype,

A: Chromosomes are defined as the thread-like structures present inside the nucleus of an individual's…

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

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

Q: For the following chromosome complements, what is the phenotypic sex of a person who has Q. XXY with…

A: A gene is a unit of genetic material present within the DNA (deoxyribonucleic acid). Each gene…

Q: Write the name of the term that describes the phrase. Possessing half of the normal number of…

A: Genetics is a piece of science stressed over the examination of genes, genetic assortment, and…

Q: Give biological term for a pair of corresponding chromosomes of the same size and shape , one from…

A: A chromosome is the thread-like structure made up of DNA. It is tightly packed in the nucleus of a…

Q: draw the acentric chromosome diagram

A: The DNA which is packed into thread-like structures inside the nucleus is called a chromosome. The…

Q: For the following chromosome complements, what is the phenotypic sex of a person who has Q. XY with…

A: The male sex-determining gene in humans is termed as the sex determining region Y (SRY) gene.…

Q: Indicate the Chromosome Numbers, (NB: indicate the letter to correspondence chromosome Number) B 人

A: Humans cell normally contains 23 pairs of chromosomes or total of 46 chromosomes. 22 pairs are…

Q: 9. 10 11 12 14 15 16 17 18 19 20 21 22 X Y SENA

A: A karyotype is a collection of arrangements and types of chromosomes of an individual. Karyotyping…

Q: name a disorder  karyotype analysis, pick and explain a disorder associated with a variation in…

A: The example of disorder that can be taken in the current scenario which results from variation in…

Q: A pair of homologous chromosomes - 1 - 2 - 3

A: DNA (deoxyribonucleic acid) is the genetic material in all living organisms. DNA is composed of…

Q: Explain how nondisjunction in meiosis is responsible for chromosome abnormalities such as Down…

A: Amongst all the chromosomal disorders, deformities in chromosome number are very easily recognisable…

Q: Down syndrome involves trisomy ___. (Which chromosome is affected?) 19 5 3 21

A: Aneuploidy is a defective condition in which one or more individual chromosomes are added to or…

Q: The karyotype pictured here represents O A. a normal male O B. a normal female OC.a Down Syndrome…

A: Answer: KARYOTYPE = It is the representation of chromosomes of an individual , from where we can…

Q: Write a short note on types of chromosomal aberrations? proper explanation and diagram

A: Chromosomal aberrations Change in structure of chromosome. Deletion Inversion Duplication…

Q: c. Draw a cell with n=2 during metaphase of meiosis I. Use two colors to show that crossing over and…

A: The meiosis is the cell division process that involves division of a diploid (2n) mother cell that…

Q: А Female with a normal set of chromosomes В Female with an abnormal set of chromosomes C Male with a…

A: The picture is showing the karyotype of the female with an abnormal set of chromosomes.  It is…

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: