What structure of the nucleus has the function of transporting small molecules through the nuclear envelope?  Group of answer choices nuclear pores nucleolus chromatin nucleoplasm

Q: The term "codon" refers to   Multiple Choice   a three-nucleotide sequence of DNA that codes for a…

A: Genetic code explqins the relationship between sequence of DNA bases in a gene and protein sequence…

Q: Which would freely diffuse through the nuclear pore complex?     GTP     a chromosome…

A: Nuclear pore is a protein complex that covers the entire nucleus in its nuclear envelope.

Q: When chromatin is in the form of a 30 nm fibril, how many copies of H1 and H2A histone proteins…

A: The DNA is wrapped around the nucleosome within the cell to form chromatin. Nucleosome – it is a…

Q: Which type of chromatin makes dark bands? Does this type usually contain more or less active genes?…

A: The human genome contains more than 3 billion nucleotides(organic molecules consist of nucleoside…

Q: Many less dynamic, more permanent cellular structures such as the nuclear lamina have (????) as the…

A: The nuclear lamina is a dense, fibrous network present inside the nucleus. The nucleus also contains…

Q: How many chromatids are found in this nucleus? A. 3 B. 6 C. 12 D. 24

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

Q: What role do the following cellular components play in the storage,expression, or transmission of…

A: Cell parts are the complex biomolecules and structures of which cells, and in this manner living…

Q: Disorder 2 is associated with the..... chose one 1. mitochondria 2. lysosome 3. ribosome 4.…

A: Every cell has different organelles and every organelle is specified to do a specific function. For…

Q: Which of the following structures is present in a prokaryotic cell? Group of answer choices…

A: Cell is the basic structural and functional unit of life.

Q: All of the following statements regarding nucleosomes are true EXCEPT A each bead-like structure…

A: The length of DNA is about 5 feets. This 5 feets long DNA needs to be placed in nucleus of every…

Q: Which of the following events occurs in metaphase? Multiple Choice   Spindle disappears   Nuclear…

A: Cell division is responsible for the generation of new cells. The type of cell division that…

Q: What do the cells labeled A and B have in common that is lacking in C? (pick one) 1. nucleus 2.…

A: Option 1 is the answer.Nucleus.

Q: Which organelle is most prominent in cells that make large amounts of protein? a.chromosome…

A: Proteins are a class of complex nitrogen is organic compound composed of amino acid residues by…

Q: Define the following terms and their relationships to one another:A. interphase chromosomeB. mitotic…

A: Gene is the primary fundamental unit of heredity. The plants and animals both have certain nucleic…

Q: What is the function of the nuclear matrix?

A: In eukaryotic cell, the cell organelle like nucleus is the responsible for maintaining the integrity…

Q: What is the relation between the concepts of chromatin andchromosome? Are euchromatin and…

A: Genetics is a part of science worried about the investigation of genes, genetic variety, and…

Q: What term best describes a entity with the following characteristics? in eukaryotes, a long, linear…

A: Question - in eukaryotes, a long, linear strand of double-helical DNA wrapped around nucleosomes,…

Q: Draw and describe the “beads on a string” structure of the chromatin. 4. What are the proteins found…

A: The haploid human genome contains approximately three billion base pairs of DNA. Each base pair is…

Q: The golgi complex breaks down during mitosis and is reassembled. My question is whether the new…

A: Mitosis involves the karyokinesis and cytokinesis. During karyokinesis nucleus divides and during…

Q: Which of the following is not true about chromatin?  1- it contains highly packed DNA  2- present…

A: DNA is a long chain of nucleotides that requires a special process of binding and packaging to be…

Q: How many copies of the H2B histone would be found in chromatin containing 50 nucleosomes? a. 5 b. 10…

A: The defined length of DNA is attached to a collection of histones called octamer. The total unit is…

Q: Disorder 4 is associated with the..... Group of answer choices nuclear DNA ribosome endoplasmic…

A: The proteins are the functional product of a particular gene and they are responsible for all the…

Q: The recipients of material contents in late endosomes    Question 2 options:   late lysosomes…

A: Eukaryotic organisms are the organisms which contain organelles and are multicellular. There are…

Q: Instead of randomly placed DNA within the nucleus of a eukaryotic cell, it seems that regions of DNA…

A: Introduction: In eukaryotic organisms, the genetic code, DNA, is found to be located inside the…

Q: A previously undiscovered single-cell organism was found living at a great depth on the ocean floor.…

A: Answer- The DNA is wrapped around the histone protein which is an octameric protein. They are…

Q: For each of the following pairs of chromatin types,which is the most condensed?a. 100 Å fiber or 300…

A: There are four levels of condensation: Nucleosome – DNA is tightly complexed with histones, wrapping…

Q: Consider the figure beow, which depicts chromatin within the neucleus of a eukaryotic cell. nucleus…

A: Topologically associating domain (TAD) also called chromosomal interacting domains in bacteria. They…

Q: What is chromatin, euchromatin, and heterochromatin

A: The nucleus (plural-nuclei) is the most important and essential part of the cell. It directs and…

Q: Where structure allows movement of RNA out of the nucleus?  Group of answer choices nuclear envelope…

A: The nucleus is like the "CPU" of the cell, which is involved in its major physiological processes.…

Q: The nuclear matrix composition: a. lamina, nucleosome b. cortex, lamina, c. nucleosome d. lamina,…

A: The nuclear matrix is described as a type of structure that majorly comprises non-histone proteins.…

Q: Which of the following is true of chromatin inprokaryotes?a. Bacterial chromosomes are not organized…

A: Introduction: Chromatin is a complex of macro-molecule found in cells, consisting of DNA, protein…

Q: What's the correct order? Nucleotide -> Gene -> DNA -> Histone -> Nucleosome -> Chromatin ->…

A: DNA is the preferred genetic material in all the living organisms. It is composed of nucleotides.

Q: A region made up of repetitive sequences in chromosomal DNA where the chromatid is attached.…

A: In eukaryotes, chromosomes are thread-like structure present in the nuclei of a cell. Chromosome…

Q: Which of the following is the most compact level of chromatin structure? Metaphase chromosomes…

A: Metaphase chromosomes is the most compact level of chromatin structure.

Q: Proteins that have been damaged, and usually marked with ubiquitin, are destined to be broken down…

A: Cell is the basic structural, functional, and biological unit of all known organisms. The cell…

Q: Cytoskeleton - Microtubules: form the mitotic spindle and maintain cell shape. Nucleus Nuclear…

A: Cell is an tiny elemental unit of structural organization of the body . In this , various metabolic…

Q: Place the following eukaryotic DNA structures in order of thickness, smallest to largest…

A: These are positively charged proteins that strongly adhere to negatively charged DNA and shape…

Q: One of the most important proteins associated with DNA that helps to organize it in the nucleus is…

A: In this question, we have to explain one of the most important proteins associated with DNA that…

Q: What structure in the nuclear envelope of eukaryotic cells allows most proteins to cross, from the…

A: Eukaryotes are the organisms in which nucleus id developed and is surrounded by a membrane. In these…

Q: How many microtubules are in a centrosome? In thedrawing, circle and label one microtubule and…

A: The centrosome is an organelle and microtubules are organized in the centrosome. A centrosome is…

Q: h eukaryotes, genetic material is packaged tightly in the nucleus. Which one of the ollowing most…

A: 1) In eukaryotes, the DNA molecule of the chromosomes are tightly packed to fit itself inside the…

Q: 1. Discuss the function of the following organelles. a. Endosome b. Lysosome c. Peroxisome d. Golgi…

A: The structural and functional unit of an organism is known as cell and the cell contain different…

Q: how the chromatin organizes itself from the beginning of prophase to metaphase of mitosis.

A: Prophase is the first step of mitosis in which the chromosome being visible and condence.in the…

Q: Arrange the levels of chromatin packing from most "open" to most condensed (chromosome, loops,…

A: Chromatin is a complex combination of DNA and proteins that makes up the chromosomes within the…

Q: Where does DNA synthesis happen in eukaryotic cells? nucleus cytoplasm mitochondria Golgi apparatus

A: DNA synthesis occurs in the nucleus in eukaryotic cells.

Q: Phases of the cell cycle (Mitosis)                 Interphase DNA, in the form of chromatin,…

A: The orderly sequence of events by which cell duplicates its DNA, synthesizes its other components…

Q: Which of the following has beads on a string structure?a) Chromosomesb) Chromatinc) Nucleosomesd)…

A: Width of chromosomes is 700 nm. Width of DNA is only 2 nm. So, DNA needs to be condensed to form…

Q: Part 1: Membranes are critical to the structure and function of cells. Answer yes or no to identify…

A: A cell is a fluid compartment that is surrounded by a plasma membrane. This layer serves numerous…

Q: Which of the following is true about the nucleus? 1-The nuclear envelope is a single membrane that…

A: Cell consists of three components : Cell wall, protoplasm and cell organelles. There are different…

Q: What cellular organelle direct formation of mitotic spindle during cell division and also form the…

A: Mitotic spindle helps in the segregation of chromosomes hence it is required during cell division…

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.