What is a centromere? How does the position of centromere form the basis of classification of chromosomes. Support your answer with a diagram showing the position of centromere on different types of chromosomes.

Q: What are Dicentric chromosome ?

A:

Q: Which statement about homologous chromosomes is FALSE?   Select one: a. They contain the same…

A: Homologous chromosome – During fertilization in a cell, one from the pair from the mother and…

Q: If a set of chromosomes is one copy of each kind of chromosome, how many sets are in a human…

A: The formation of male and female gametes required meiotic cell division, in which the parent germ…

Q: a. What letters are used to represent the short andlong arms of human chromosomes?b. Sketch a…

A: The human chromosomes have two arms; one short and other long. These arms are separated from each…

Q: what chemical component of the chromosome constitutes the genetic material ?

A: In this fusion of male and female gamete occurs. In this fusion of two gametes occurs which involves…

Q: what are chromosome bands and why are they important

A: Chromosome banding is the term used to describe the alternating light and dark patches that appear…

Q: What are polytene chromosomes?

A: A Chromosome is an entire chain of Deoxyribonucleic acid (DNA) with stabilizing proteins. The DNA is…

Q: A chromosome with a centromere located at its terminal end is termed

A: Centromere is a central constriction of a chromosome.

Q: what are Synthetic Chromosomes

A: Chromosomes refer to the molecule of DNA (deoxyribonucleic acid) that contains all or part of the…

Q: What is the molecular composition of a chromosome

A: Answer. Chromosomes are oval rod thread like DNA complexes which functions as hereditary vehicles.…

Q: List 8 different processes that affect the structure of the chromosomes. Explain how each process…

A: Structural abnormalities in a chromosome occurs in many ways. Some of the structural abnormalities…

Q: Sketch and identify four different types of chromosomes based on the position of the centromere.

A: The sxe and number of chromosomes vary from species to species and genera to genera. Usually, within…

Q: a. List three (3) features to identify the structure of a chromosome. b. Based on the three…

A: Introduction :- Chromosomes are the greatest level of DNA and protein organisation. Chromosomes'…

Q: Tabulate the different classifications of Human chromosomes. Group them as well using "Vogel and…

A: Humans have 46 chromosomes arranged in 23 pairs, among which 22 pairs are autosomes while the 23rd…

Q: What is the basis for homology among chromosomes?

A: The thin, string-like structure, occurring in the nucleus of all cells of an organism is a…

Q: What are polytene chromosomes and chromosome puffs?

A: Giant chromosomes are much larger in size than the normal chromosomes, reaching a length a length of…

Q: What do you call a chromosome where its centromere is 3/4 from the end of the chromosome

A: Chromosomes are found in nucleus of cells and consist of DNA tightly bound into thread like…

Q: If the skin cells of house cats contain 38 homologous pairs of chromosomes, how many chromosomes are…

A: Chromosomes are thread-like structures that carry genes.

Q: A diploid plant cell contains 2 billion base pairs of DNA. a. How many nucleosomes are present in…

A: The nucleosome is the fundamental structural unit of the DNA. In each nucleosome, DNA and histone…

Q: What is ideogram in chromosomes?

A: In all the living organisms, the genetic material is organized into a specific structure known as a…

Q: mosome disorder explain with examples.

A: Almost each cell in our body contains 23 pairs of chromosomes, for a complete of forty six…

Q: What is the difference between genes and chromosomes? Give examples!!!

A: The genes are comprised of DNA. A few genes gives guidelines to make molecules called proteins.…

Q: What are polytene chromosomes ? What is the role of polytene chromosomes ?

A: A Chromosome is an entire chain of Deoxyribonucleic acid (DNA) with stabilizing proteins. The DNA is…

Q: If a muscle cell in a frog has 28 chromosomes how many chromosomes will an unfertilized egg produced…

A: Vegetal cells are another name for somatic cells. The main distinction between somatic and germ…

Q: Describe the function of the centromere. How are centromeres different from other regions of the…

A: Chromosomes are long thread-like structures that carry coded genetic information in the form of DNA.…

Q: the name of the labelled part of the chromosome? Please explain its function

A: The given diagram is of a polytene chromosome found in dipteran flies such as drosophila,…

Q: What are regions of chromosomes (or even whole chromosomes) that are heterochromatic in some cells…

A: The chromosome is a threadlike structure that is present in the nucleus and it is made up of nucleic…

Q: What are the informational units on chromosomes called? Of what do these informational units…

A: Chromosomes are lengthy DNA-carrying structures found in the centre (nucleus) of cells. The…

Q: Each Chromosome Is Composed of a Single Long Molecule of ___________?

A: The chromosome is a DNA molecule that consists of hereditary information. The DNA is packed with…

Q: Which of the following describes a Homologous Chromosome?

A: The gene is the basic fundamental of heredity. It is found in the chromosomes of the nucleus of the…

Q: Which letter denotes the homologous chromosomes? Group of answer choices C A D b

A: Gene is the sequence of nucleotides that encode a particular protein.

Q: If two chromosomes of a species are the same length and have similar centromere placements and yet…

A: Chromosomes are carriers of genetic information. They are the physical units that transfer genetic…

Q: In one sentence, explain how the terms “gene,” “locus,” and “chromosome” are related.

A: Introduction  Genes are the main regulatory sequence of nucleotides found in the nucleus which…

Q: Why are changes in chromosome number almost always more severe than changes in chromosome structure?

A: Introduction  Chromosomal aberrations are the common cause of abnormal development of the embryo or…

Q: how much   of the human chromosomes are Submetacentric?

A: On the basis of position of centromere the chromosomes are categorised as: Metacentric…

Q: Can you cite a situation in which it shows how important two strands on the same chromosome have…

A: In eukaryotic cell,during cell division one of its main jobs is to make sure that to show and bind…

Q: What is known as homologous chromosomes ?

A: Chromosomes are highly condensed forms of deoxyribonucleotide [DNA] that are thread-like structures…

Q: In many organisms, including humans, chromosomes occur in homologous pairs; where does each member…

A: In higher organisms, chromosomes occur in homologous pairs. One chromosome of the pair from each…

Q: How many pairs of chromosomes do human beings have, specify the types of chromosomes also?

A: Chromosomes are thread-like structures located inside the nucleus of animal and plant cells. Each…

Q: what are the   Types of duplication chromosomes.

A: Chromosomal abnormality refers to the various alterations in the chromosomes that include an extra,…

Q: What letters are used to represent the short andlong arms of human chromosomes?

A: CHROMOSOMES These are thread-like structures located inside the nucleus of animal and plant cells.…

Q: What would you conclude about where the microtubules depolymerize from comparing the length of the…

A: To determine: To determine the conclusion where the microtubles depolymerize from comparing the…

Q: Illustrate the chromosomes with centromere placements at different distances along their length ?

A: Chromosomes are defined as the long thread-like structures  present within the nucleus of the cells…

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.