Variation in the traits of organisms may be attributable toa. gene mutations.b. alterations in chromosome structure.c. variation in chromosome number.d. all of the above

Q: 6. It is also called inheritance or biologlcal inheritance where traits are passed on from parents…

A: Since you have posted multiple questions, we will solve the first question for you. If you want any…

Q: Eukaryotic chromosomes are composed ofa. DNA. c. histones.b. proteins. d. All of the above

A: Chromosomes are the rod shaped, dark stained bodies which are most prominently seen in the metaphase…

Q: explain how genes that are unused or not needed to survive/reproduce can disappear.

A: Gene can be defined as a unit heredity;that may affects or influence the organism's trait.Each genes…

Q: In mammals, sex is determined bya. the SRY gene on the Y chromosome.b. having two copies of the X…

A: In a biological system, the development of sexual characteristics in an organism determined by the…

Q: How would you find out if the causes of variations is genetic or environmental?

A: Variations are responsible for helping a species to survive by causing the organisms of a species to…

Q: Which of the following refers to chromosome? options: The units of inheritance. The…

A: Chromosome The complex of RNA ,proteins  and a single DNA molecule that comprises some or all of…

Q: Telomeres in eukaryotic organisms perform several functions. Circle telomeric functions that are…

A: Telomere is a cap like structure present at the end of chromosome. It contain constitutive…

Q: A QTL is a __________ where one or more genes affecting aquantitative trait are ________ .a. site in…

A: Gene is the smallest functional unit of hereditary, composed of DNA (deoxyribonucleic acid), which…

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: Describe how the following contributes to genetic diversity: Recombination, Independent assortment

A: In genetics the recombination and independent assortment both are responsible for making genetic…

Q: 1.     _____________ frequencies are used to obtain a genetic map. A.    Transduction B.…

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Q: The physical position of a gene on a chromosome is its________ ; slightly different forms of a gene…

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

Q: BEST describes the hereditary information in a cell

A: Gene is the small fragment of DNA DNA is the small segment of chromosome chromosome is situated…

Q: In an organism’s genome, autosomes are a. the chromosomes that differ between the sexes. b.…

A: Genetics is the branch of biology that deals with genetic material like DNA, RNA, inheritance.…

Q: In fruit flies, dosage compensation is achieved bya. X-chromosome inactivation.b. doubling the…

A: Dosage compensation refers to the mechanism of equalizing or balancing the expression of genes. It…

Q: The kinetochore is a structure that functions toa. connect the centromere to microtubules.b. connect…

A: Chromosomes are filamentous bodies present in the nucleus. They are composed of DNA(…

Q: Which of the following is true of a species that has a chromosomes number of 2n=16? a. The species…

A: Meiosis is a reductional division which is responsible for producing the gametes from the diploid…

Q: In eukaryotes, the genetic material is found in chromosomes,a. and the more complex the organism,…

A: Eukaryotes are multicellular organisms that have a nucleus enclosed within membranes that comprises…

Q: Explain Species variations in the number and shape of chromosomes

A: Chromosomes are the threadlike structure of DNA and protein-containing genetic information. These…

Q: Which of these items have the same exact Genetic information/ Nucleotide Sequence.  a. Chromosome 1…

A: DNA is the carrier of hereditary information that transfers the genetic information from one…

Q: The__two genes are, the__ likely they are to be inherited together. A. farther, more B. more, more…

A: Inheritance is defined as the process by which characters or traits are passed on from the parent…

Q: Which is NOT an affect of chromosomal translocations? A. Translocation breaks can disrupt existing…

A: In a translocation, a segment from one chromosome is transferred to a nonhomologous chromosome or to…

Q: Crossing-over is all of the following EXCEPT   A. rearranging genes to combine some of a person's…

A: Crossing over is the phenomenon or event in which exchange of genetic material takes place resulting…

Q: Humans with aneuploidy who survive usually have incorrect numbersof chromosome 13, 18, or 21 or the…

A: Aneuploidy involves the addition or deletion of one or more chromosomes, which is a part of a genome…

Q: A chromosome that is metacentric has its centromerea. at the very tip.b. near one end, but not at…

A: An eukaryotic chromosome consist of DNA and protein complex known as histones. They are organized in…

Q: In a trisomic individual, such as a person with trisomy 21 (Down syndrome),a genetic imbalance…

A: Trisomy 21 is a common genetic defect that is caused by chromosomal abnormalities. Trisomy 21 refers…

Q: The Medical Genetics lab was used to look at how alleles of the BRCA1 and BRCA2 genes are passed on…

A: Cancer: when a normal cell undergoes uncontrolled division and differentiation it becomes cancerous…

Q: Is each of the following traits or diseases determined by nuclear genes?A. Snail coiling patternB.…

A: Nuclear inheritance-  When offspring inherit a combination of nuclear chromosomes from each parents…

Q: In agriculture, an advantage of triploidy in plants is that the plants area. more fertile.b. often…

A: Ploidy refers to the number of chromosomes that occur in the nucleus of the living cell. Triploidy…

Q: #6: You are a young haploid male Honeybee. What is the probability that a gene in your genome is…

A: In honey bees, male is haploid while female is diploid. Such haplodiploidy is observed in some…

Q: Chromosome duplications often result in abnormal phenotypes because a. developmental processes…

A: Duplication is a type of mutation. It involves the production of more copies of a particular region…

Q: Errors in crossing-over can happen when...   Select one: a. Non-homologous chromosomes cross-over…

A: Unequal crossing over is a form of gene duplication or deletion in which a sequence in one strand is…

Q: Which of the following mechanisms are important for generating new genotypes in species that…

A:

Q: Nondisjunction can happen in males and females. It has been found to correlate with advanced…

A: Non disjunction is the failure of chromosome separation during meiosis that cause to produce…

Q: A change in chromosome structure that does not involve a change in the total amount of genetic…

A: A chromosomal rearrangement involves the changes in the native structure of a chromosome.

Q: In addition to DNA swapping, another contributor to the uniqueness of eggs/sperm and people is…

A: Mutation  It is defined as a change that takes place in the DNA sequence. This alteration is due to…

Q: Polydactyly is a condition in which a person has extra fingersand/or toes. It is caused by a…

A: Gene is a particular nucleotide sequences in RNA or DNA. It is generally located on a chromosome.…

Q: During the molecular process of homologous recombinationbetween homologous chromosomes,a. a Holliday…

A: Recombination ais the process where the genes are reassorted into different combinations.…

Q: Step 3: Compare the Parentals with the Double Cross Overs (DCO) to determine the correct order of…

A: As per our guidelines policy, We are supposed to answer first three sub parts of a question. Please…

Q: When the chromosomes of closely related species are compared, a. the banding patterns are often…

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

Q: Forward mutations   A change a wild-type allele to a different allele.   B changes and mutant…

A: The changes in the sequence of DNA due to mistakes during replication, UV light, or environmental…

Q: Genetic linkage occurs becausea. genes that are on the same chromosome may affect thesame…

A: In nucleus of a cell – DNA is present in form of chromosomes. These are compact structure of DNA…

Q: Hox genes encode transcription factors that a. control segmentation. b. promote determination. c.…

A: Arthropods are the invertebrate animals characterized by a distinct segmented body and paired…

Q: Dominant alleles may result from mutations that causea. the overexpression of a gene or its protein…

A: Mutation is defined as sudden inheritable change that occurs in the DNA sequence. It may be…

Q: A paracentric inversiona. includes the centromere within the inverted region.b. does not include the…

A: Inversion is a type of mutation in which the chromosome rearrangement takes place, in which a…

Q: Individuals with XYY chromosomes are said to be "supermale". Which of the following is FALSE…

A: Humans are said to have 23 pairs of chromosomes which makes a total of 46 when the cells are normal.…

Mitochondrial Mutations

A mitochondrion is a cellular organelle that serves as the site for cellular respiration and energy production (ATP or Adenosine Triphosphate). It is a double-membrane-bound organelle and is only present in eukaryotic cells.