The size of the deleted chromosomal piece a. is correlated with cytoplasmic streaming only O b.determines the severity of the genetic disorder C. none of these O d. is usually associated only with genic (base pair) mutations e. is replaced through normal meiosis

Q: describe the Chromosomal rearrangements caused by TEs

A: Transposable elements (TE) or transposons are segments of DNA that can move around the genome.  It…

Q: During oogenesis, nondisjunction of X chromosome occurred in meiosis I. If the resulting egg unites…

A: Non disjunction is the failure of chromosomes / chromatids to separate during Anaphase. In Meiosis…

Q: Match the chromosome disorder to its descriptionin the key. Turner syndrome a. female with…

A: Chromosomal disease, any condition of any of the body's structures marked by abnormalities or…

Q: Start with a single E/e ; G/g germ cell. It suffers nondisjunction during meiosis II. Which of the…

A: Non-disjunction can takes place in meiosis I or meiosis II where the chromosomes fails to separates…

Q: Which of the following does not have an autosomal recessivepattern of inheritance?a. cystic…

A: Sir Gregor Mendel was a priest and a teacher who did the famous hybridization experiment on garden…

Q: What is Patient A's karyotype? A. Down syndrome B. Patau syndrome C. Klinefelter syndrome D.…

A: A karyotype is referred to as the collection of all the chromosomes of an individual. This is an…

Q: The following characteristics are associated with all variations in chromosomal structure EXCEPT…

A: Introduction:- Chromosomes consists of a cell's DNA along with the associated proteins ( histones…

Q: It is estimated that in about 1/150,000 births, an individual is born with 46 chromosomes, both an X…

A: Introduction: Any form of change that occurs in the DNA sequence is referred to as a mutation. A…

Q: genes relies on the existence of ovoD, a dominant female sterile mutation of the ovo gene, whichis…

A: Hello there! As you have posted multi-part questions, we are answering only the first question. If…

Q: Most of the human disorders e.g Turner's syndrome occur due to errors that lead to a change in the…

A: Turner syndrome is a chromosomal disorder in which a female is born with only one X chromosome. It…

Q: d. Here's a Mendelian genetics question for you. The HO gene is on a different chromosome from that…

A: MAT locus MAT locus determines the mating type and sexual behaviour of haploid and diploid cells.…

Q: Give the genetic content (2C or C) and the chromosome number of A. cepa during the following phases:

A: The cell division is a process by which a mother cell divides and produce two or more than two…

Q: Which of the following is the most common type of chromosomal disorder? O a. Kleinfelter's Syndrome…

A: Any syndrome produced by an aberrant chromosome number or constitution, marked by deformities or…

Q: Select the letter of the choice that best completes the statement. An extra chromosome can cause a…

A: Genetic disorders are phenotypic abnormalities caused due to gene mutations, multifactor genes,…

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: Independent assortment means thata. two genes tend to be inherited together.b. which allele of a…

A: The biochemical substance that is carried from to the succeeding generations is the inheritable…

Q: Homologous chromosome: A. Are identical B. Carry information for the same traits C. Carry the same…

A: Homologous chromosome, as the name suggest these are the pair of chromosomes which are structurally…

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: А. Prophase I, homologous chromosomes pair up and exchange fragments В. Metaphase I, homologue pairs…

A: Cell cycle: The cell cycle is an orderly sequence of processes that involves cell division and…

Q: explain Chromosomal rearrangements caused by TEs

A: Transposable elements or transposons are segments of DNA that can move around the genome.  It can…

Q: Abnormalities in the number of X chromosomes tend to be milder than the same abnormalities in…

A: Introduction: Chromosomes are easily recognised on a karyogram due to their number, size, shape, and…

Q: Explain how nondisjunction can affect the normal cell division.

A: Introduction The "cell cycle", also known as "cell division", is a set of processes that occur in a…

Q: Predict the phenotypic consequences of each of the following mutations: A. apetala1 defective B.…

A: A mutation is an alteration or change in a deoxyribonucleic acid (DNA) sequence. Mutations can…

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

A: Meiosis is the phenomeon that is well known term and usually discreibe in which diploid cells divide…

Q: As a result of the abnormalities in chromosomes divergence in meiosis, there was formed the…

A: Genetic abnormalities in new born baby.

Q: Match the following events with the stages in Meiosis Prophase I…

A: These are the stages of meiosis first division which is associated with reproductive cells. The egg…

Q: Males only have 1 X chromosome. This is called: a. Homozygous O b. Heterozygous O c. Hemizygous O d.

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

Q: In the beginning of meiosis II, each chromosome is duplicated and attached. These chromosomes are…

A: Meiosis cell division is divided into two stages. Meiosis I or reductional cell division reduces the…

Q: Autosomal homologous chromosomes   a. are joined at the centromere b. are the same size but…

A: Autosomal chromosomes  These are any chromosomes but not sex chromosomes. They contain gene for body…

Q: Separation of homologous chromosomes during Meiosis I requires: Select one: a. Removing centromere…

A: A division in which diploid cell reduces the chromosome number into half by cell division and…

Q: Crossing over usually contributes to genetic variation by exchanging chromosomal segments between…

A: Chromosomes are present inside the cell nucleus and made up of DNA (Deoxyribonucleic acid) molecules…

Q: Karyotyping can be used to reveal the number, size, and form of chromosomes in an actively- dividing…

A: Karyotyping is a cytogenetic technique used to study and analyze the number, size, and structure of…

Q: Human cells normally have 46 chromosomes. For eachof the following stages, state the number of…

A: Mitosis is a cell division process by which the number of somatic cells in our body increases. It…

Q: During the observation of a baby the diagnosis of Down's syndrome was made. What is the main cause…

A: Normally a baby is born with 46 chromosomes.  But in case of down syndrome babies have extra…

Q: Which of the ff. Statement is not true: a. Euploid is a good set of chromosome number b.…

A: Genetic disorders can be outlined as the clinical conditions which occur in the body of an…

Q: von Gierke's disease is inherited as A. Autosomal dominant B. Autosomal recessive C. X-linked…

A: Von Gierke's disease is glycogen storage disease which occurs due to defective catabolism of…

Q: 7 of A OY embryo or egg, where an egg is missing both X chromosomes and is fertilized by a normal…

A: The situation of an OY embryo or egg, where an egg lacks both X chromosomes and is fertilised by a…

Genetic Evolution

Sexual reproduction produces distinct population variations. Heredity determines the traits and qualities to be passed down to the progeny. Over time, this variation within-species is also affected by the process of human evolution. The study of how genetic variation leads to evolutionary changes is known as genetic evolution. If a trait helps an organism to survive and reproduce, it is more likely to be passed down the generations. It is rare that such traits result in a completely distinct set of traits in descendants than the ancestral population; this can result in the emergence of a new species.