QUESTION 17 Which statement about a dihybrid cross is true? O 1. It results in a genotypic ratio of 2:1. O 2.It involves genes located on the sex chromosomes. 3. It results in offspring of lower quality than that of the parents. 4. It results in two different phenotypes in the F2 generation O5. It is a cross between identical double heterozygotes.

Q: Question 1   Given that the passing of alleles into gametes is random, if we observe one gamete (egg…

A: According to the Mendel’s law of Segregation each individual will have one allele from each parent…

Q: Question 1: In tomatoes, round fruit (O) is dominant to oblong fruit (o).  Write as much as possible…

A: The above question follows Mendel inheritance pattern. Inheritance can be of single trait or of two…

Q: Question 11 If the frequency of the homozygous recessive genotype is 0.36, what is the frequency of…

A: Introduction The Hardy-Weinberg Equilibrium States That, In The Absence Of Disrupting Events,…

Q: Blue feather color is dominant to brown feather color. Which of the following statements is true…

A: Dominant and Recessive alleles Dominant alleles are those that mask the expression of other alleles…

Q: Question 11 Speciation is shown in the Phylogenetic Tree below. Ancestral globin gene mes Bl V…

A: Evolution of human globin genes.   Duplication of an ancestral gene about 500 million years ago.…

Q: QUESTION 3 Nondisjunction is rare. Which of the following is FALSE? O A. Nondisjunction is when…

A: Proper separation or segregation of the sister chromatids or homologous chromosomes is essential for…

Q: Question 4 Review Mendel's genetic experiments. Select all correct answers. The self cross between…

A: Alleles are the alternative forms of a gene that are located on the same locus of a homologous…

Q: QUESTION 1 The picture below represents a G1 cell from a newly discovered species that uses the X/Y…

A: Crossing over increases genetic diversity.

Q: Question 81 What process ensures a new indiv Meiosis

A: A parent cell divides into two or more daughter cells in the course of cell division. Normally, cell…

Q: Question 11: If mutant haploid strain is mixed with a wild-type haploid strain, how many chromosomes…

A: Haploid and diploids An organism is said to be haploid when it consists of a single copy of a…

Q: Question 20 Which of the following statements regarding nondisjonction is incorrect? 1. could result…

A: # Non disjunction results in an extra chromosome in one of gamete and one less chromosome. Hence :…

Q: Question 23/28 According to the probability of the pea plant offspring in chart 2, what percentage…

A: According to the question, we have to find out the percentage of the offspring that will be yellow…

Q: QUESTION 10 If mitosis produced gametes in sexually reproducing organisms, then: chromosome number…

A: Q10. Usually, it’s done by meiosis, if it were to happen by mitosis each gamete will be a diploid.…

Q: Question 8 In guinea pigs, the allele for short hair (S) is dominant. In a cross between a…

A: Need to find the percentage of offspring with long and short hair of guinea pigs.

Q: Which of the following occurs during meiosis in eukaryotic spermatogonia?   A. One diploid cell…

A: Spermatogenesis is the developmental process of haploid spermatozoa or spermatid (gametes) formation…

Q: Chromosomes are said to be homologous when : 1. they carry the genes for the same traits 2. they are…

A: Chromosomes are the condensed form of the chromatin. This condensation usually takes place in the…

Q: QUESTION 4 If the haploid number of chromosomes for a cell is 24, there would be 12 chromosomes in…

A: Answer : false

Q: QUESTION 4 Which of the following crosses would always result in offspring that only display the…

A: The phenotype of a genotype containing the dominant allele, the parental phenotype that is expressed…

Q: QUESTION 23 I II III IV V VI Figure 10.2 Refer to the drawings in Figure 10.2 of a single pair of…

A: Anaphase is the stage where homologous chromosome separation starts.

Q: Question 7 Review meiosis. If a cell has 24 chromosomes, after meiosis I, how many chromosomes are…

A:

Q: Question 18 In snapdragons, red x white> pink. What proportion of pink flowers are expected from the…

A: This case is an example of incomplete dominance.  Suppose the allele is R (dominant) and…

Q: Question 12 Using the following human pedigree, determine which of the following indivduals…

A: Alleles are the alternative forms of a gene that are located on the same locus of a homologous…

Q: QUESTION 1 Sister chromatids are separated from each other: only in mitosis only in meiosis I only…

A:

Q: male rabbit with the genotype GGbb is crossed with a female rabbit with the genotype ggBb The square…

A:

Q: QUESTION 1 Homologous chromosomes move away from each other during: fertilization O meiosis I…

A: Question 1:  Homologous chromosomes move away from each other during the anaphase of  mitosis . The…

Q: Question: Red color (R) allele is dominant over blue color (r) for carnations (a type of flower).…

A: A) Genotype- It is the set of genes that we have inherited from our parents and will pass on these…

Q: Question 4 If purple flowers (P) are dominant to white flowers (p), then the phenotype of PP is O…

A: In mendelian genetics we have two types of genes i.e dominant gene and recessive gene. Dominant gene…

Q: QUESTION 24 The gametes (eggs or spermatozoa) of a typical animal are: O haploid, with two copies of…

A: The gametes (eggs or spermatozoa) of a typical animal are of a specific nature. Here we will discuss…

Q: Question #1 Since experimental crosses are not performed in humans, how do we know how traits are…

A: Genetic inheritance is essential for evolutionary changes. It will describe or tell about how the…

Q: Question 2 KEY #100 O Normal female Normal male Carrier female Female with disorder Male with…

A: *A carrier male is married to a normal male and they have two children with having  One diseased…

Q: Question 8 (1 point) In peas, long stem (A) is dominant over short stem (a). A heterozygous, long…

A: Dominant alleles are those alleles whose phenotypic traits are expressed in the offspring over the…

Q: Question 8 Both alpha globin and beta globin are examples of gene duplication. Ancestral globin gene…

A: True. Both the alpha globulin and beta globulin are example of gene duplication.

Q: Which of these is a risk factor for developing cancer?   A. growing older   B. genetic…

A: If by any reason cell cycle checkpoints do not function, cell division becomes uncontrolled. the…

Q: Question 5 Assume you discovered two new genetic traits in drosophila caused by two different…

A: Introduction A chi-squared test, specifically Pearson's chi-squared test and variants thereof, is a…

Q: Question 17 You and your laboratory partner began to conduct a dihybrid cross of pea plants before…

A: Allele frequency refers to how frequently a particular allele appears in a population.

Q: QUESTION 23 A series of experiments shows that oil content in a diploid grain is influenced by five…

A: This is the case of polygenic inheritance. Because more than one genes are involved in this…

Q: Question 3 Two pure breeding lines of pea are crossed. One is purple-flowered and tall, the other…

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

Q: QUESTION 21 Double fertilization involves 2 fertilizations, write the cells/nuclei involved with…

A: Fertilization 1:- First Male gamete, with ploidy level of n  + egg cell with ploidy level of n =…

Q: Under what situation would you expect haplotype frequencies to remain unchanged from one generation…

A: A haplotype is a collection of alleles from many markers passed down from one parent.

Q: Question 41 Which of the following statements does BEST compare the processes of mitosis and…

A: Depending on the cell i.e somatic cell or germ cell the process of mitosis or meiosis takes place.…

Q: QUESTION 4 The observable physical properties of an organism make up its: O genotype O…

A:

Q: QUESTION 6 For a trait known to be caused by a mitochondrial gene variant, there may be an…

A: The collaboration between the mitochondrial and nuclear genomes in the effect of ever-changing…

Q: Question 10. In what phase of meiosis is chromosome recombination most common?

A: Recombination  Recombination is a biological process in which two non sister chromatids exchange…

Q: Question GROUP B: how well do you think you know the phases of mitosis and meiosis? Identify the…

A: The answers are: 1. Metaphase(Mitosis) 2. Metaphase I(Meiosis) 3. Anaphase 4. Metaphase I(Meiosis)…

Q: Question 7 Recessive alleles: None of the above Mask the expression of the dominant allele Always…

A: Verious form of gene is called allele. There are two allele one is dominant allele and another is…

Q: Question 13 What is the ratio of phenotypes in the offspring produced by the cross Aa x Aa? Assume…

A: When Aa is crossed with Aa,  Ratio of phenotypes is 3: 1 ( i.e. 3 dominants(either AA or Aa) and 1…

Q: Question 1 Which of the following behaviors of chromosomes explains Mendel's first law (law of…

A: Inheritance or heredity is passing-on one trait form the parents to the progeny by either asexual or…

Q: QUESTION 28 The flies in the figure are mated. Which chromosomes would have the highest frequency in…

A: A breeding experiment among two animals that are exactly hybrid for two features is referred to as a…

Q: Question 11 What is the genotype of the individual 6 in generation II? 2 3. 4 2 3 5 6 7 III 2 3 4 5…

A: In order to assess the genotype of the given individual in this Pedigree one should know the…

Q: QUESTION 16 Independent assortment of chromosomes is a result of: The random and independent way in…

A: Independent assortment is one of the mendelian law. Mendle's law of Independent assortment occurs in…

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.