QUESTION 69 Prezygotic reproductive isolation can occur O a. during embryo development O b. during fetal development C. after birth O d. during meiosis O e. during fertilization
Q: Question 26 Natural selection means that O populations change over many generations a few…
A: Natural selection is an important term in evolution biology given by the naturalist Charles Darwin.…
Q: Question 20 Fruit fly embryos, show superficial cleavage, where the peripheral nuclei in a syncytial…
A: Introduction Drosophila melanogaster is a species of fly which is also known as the fruit fly, the…
Q: QUESTION 49 Relatively high heritability estimates of warning behavior in a population of…
A: Relatively high heritability estimates of warning behavior in a population of rabbits on Fisher’s…
Q: QUESTION 5 Without crossing over, people would be and the human species would be to survive. O A.…
A: Since we only answer 1 question in case of multiple questions, we’ll answer the first question as…
Q: QUESTION 13 Assume that a diploid cell (2N=8) contains 4 pairs of chromosomes (3 pairs of autosomes…
A: Meiosis is the process of cell division in which the genetic material is reduced to half. One cell…
Q: If a certain species has a DNA content of 5 picograms in each diploid cell's nucleus when the cell…
A: Mitosis cell division is the type of cell division that occurs in the somatic cells and all the…
Q: Darwin’s finches on the Galapagos Islands are a group of species of finches. One of the major…
A: Darwin was the great naturalist, who gave many theories for evolution. One of major theory was…
Q: Question 3 is the transmission of DNA to offspring. O a Development O b. Homeostasis O c.…
A: DNA It is defined as the molecule which constitutes two polynucleotide chains that form a double…
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 10 Bb produces type(s) of gametes. O 2 0 1 0 3 0 4
A: The number of possible gamete =2n n = number of heterozygous gamete . Bb = Number of heterozygous…
Q: QUESTION 3 A trait is a homozygous organism an observable physical feature a physical feature with…
A: Alleles are two contrasting characters of a trait. For example - height is a trait, long and short…
Q: You are examining a nematode population in the compost behind your house. You notice that in the…
A: Homozygous individuals have two identical alleles on a specific locus that act for a particular…
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: 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: QUESTION 4 If the haploid number of chromosomes for a cell is 24, there would be 12 chromosomes in…
A: Answer : false
Q: QUESTION 5 that happens in In addition to DNA swapping, another contributor to the uniqueness of…
A: For a given population, there are three sources of variation: mutation, recombination, and…
Q: Question 7 Review meiosis. If a cell has 24 chromosomes, after meiosis I, how many chromosomes are…
A:
Q: QUESTION 3 During which stage(s) of meiosis does crossing over take place? O A. Early and Late…
A: Meiosis - Meiosis is a process in which single cell divides to produce 4 new daughter cells. These…
Q: Question 3 (1 point) "BB" is an example of a genotype Homozygous O Heterozygous Question 4 (1 point)…
A: An allele is a variant form of a given gene. Phenotype is the observed physical traits of an…
Q: QUESTION 17 Micro- and Macro-evolution are not possible without DNA mutation and reproduction making…
A: Question 17: Micro- and Macroevolution are not possible without DNA mutation and reproduction making…
Q: Question 1. (a) Name the following : | (i) The layer of the eyeball that provide nourishment to the…
A: The ozone layer is a layer that can be found in the stratosphere. It is capable of absorbing the…
Q: QUESTION 58 The degree to which natural selection can operate depends on the degree to which a trait…
A: Natural selection causes populations to become adapted or increasingly well-suited to their…
Q: Question 18 Lamarck thought that species change through the inheritance of acquired characteristics…
A: Lamarck species change theory was based on that the any physical changes that occur in organisms can…
Q: QUESTION 31 All species use the same elements to make DNA. O True O False
A: Since you have asked multiple questions, we will solve the first question for you. If you want any…
Q: QUESTION 6 Each meiosis results in usable eggs in females and usable sperm in males. O A. 1; 1 ОВ 4,…
A: Meiosis is a cell division used to produce gametes (sperm or egg cells), in sexually reproducing…
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: What would be predicted to be the most common cause of chromosome translocations in Meiosis? A.…
A: Chromosomal translocation: When a piece of one chromosome breaks off and attaches to another, it's…
Q: QUESTION 5 Although it is rare, some cetacean species have occasional individuals with hind paired…
A: Answer : Option 3 and 4 correctly describes the phenomenon. Option 3 is correct because it is true…
Q: QUESTION 8 The fertilized egg is called a zygote, and is considered the ultimate stem cell. True…
A: The fertilized egg is known as zygote. When a sperm fertilizes egg it becomes zygote. Scientists…
Q: Question 1. (a) Name the following : (i) The layer of the eyeball that provide nourishment to the…
A: (i) Choroid
Q: Question 5 Early classifications of the polar bear were based on reproductive isolation from brown…
A: As early naturalists gained a better understanding of the diversity of creatures, they devised many…
Q: Question 2. On the logarithmic scale, an increase from 0.1 to 0.5 moths per plant is the same…
A: As per the given information, Logarithmic increase is from 0.1 to 0.5 moths per plants. The…
Q: In red-collared widowbirds, females establish more nests in territories of long-tailed males versus…
A: Male competition is a type of sexual selection in which two males of same species compete for mating…
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: 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 40 The risk factor for autism is 150. How would you advice your patients: O two siblings…
A: Genes are the fundamental unit of heredity. They store genetic information in the form of DNA, which…
Q: Question 6. Which of the following is a difference between mitosis and meiosis? a. Mitosis occurs in…
A: Mitosis is the equational division resulting in the formation of daughter nuclei that are exactly…
Q: Question 23 Once a hypothesis has been shown to be true many times it becomes a experiment…
A: Hypothesis is an assumption which is carried out on the basis of some proofs.Hypothesis is the…
Q: Question 9 D The presence of tiny hairs, called setae, on the toe pads of some geckos is associated…
A: Phylogenic trees are a great tool used by evolution biologists to chart out the progress of…
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 1 The duration of time from first exposure to HIV infection to AIDS diagnosis is called the…
A: Given condtion in d part of the question 12.0 12.0 10.5 10.5 9.5…
Q: QUESTION 10 When using an organism's taxonomic name, scientists usually abbreviate by using just…
A: Homo modernus - The Homo modernus (modern man) was born some time in the 780s Homo ferox means…
Q: Question 64 The cell formed through fertilization of an egg by a sperm is called a/an O zygote. O…
A:
Q: QUESTION 1 Tigers are much more complex organisms than the single-celled Amoeba dubia, however…
A: The genome size doesn't directly proportional to complexity or body size of an organism.
Q: QUESTION 9 Is nondisjunction a good or a bad thing? A. Good because it ensures that each child has…
A: During mitosis, each chromosome duplicates and the two daughter chromosomes separate, with one…
Q: QUESTION 38 Florida panthers had declined to fewer than 100 individuals with a variety of health…
A: Inbreeding depression is the decreased survival and fertility of any kind of ancestral down the line…
Q: QUESTION 15 In 1859, Charles Darwin published On the Origin of Species, in which he: O presented the…
A: charles darwin in 1859 published on origin of species the theory was proposed to explain one of the…
Q: QUESTION 10 Which of the following is NOT a cleavage pattern?
A: After Fertilization Cleavage of Zygote occurs. Cleavage is the Division of Zygote into many cells…
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- Question 49 The scientist(s) who showed that DNA contained equal amount of certain nitrogen bases (i.e., A=T and C=G) is (are): Question 50 The cell that starts meiosis I is: haploid diploid a somatic cell a gamete Question 51 What is “silent” mutation? Question 52 Where does mitosis occur within this figure? (see letters in boxes) A B C D C and D Question 53 What form of chromosome abnormality is shown in the following Figure? Question 54 What type of mutation causes Sickle cell anemia? Question 55 The order of nucleotide bases on two sides of a DNA double-helix is Identical Similar Complemetary Nonidentical Question 56 What types of mutations are NOT passed to future generations? Question 57 What enzyme copies DNA into RNA? Question 58 Meiotic cell division replicates a cell's DNA ____________ and then divides ______________ twice; twice. once; once. None of the answer choices are correct. twice; once. once; twice. Question 59 ____ divide during meiosis I, while…Do Q1 Applying concepts both part a as well as bQuestion 3. There are 100 students in a class. Ninety-six did well in the course whereas four blew it totally and received a grade of F. Sorry. In the highly unlikely event that these traits are genetic rather than environmental, if these traits involve dominant and recessive alleles, and if the four (4%) represent the frequency of the homozygous recessive condition, please calculate the following: A) The frequency of the recessive allele. B) The frequency of the dominant allele. C) The frequency of heterozygous individuals. Question 4 Within a population of butterflies, the colour brown (B) is dominant over the colour white (b). And, 40% of all butterflies are white. Given this simple information, which is something that is very likely to be on an exam, calculate the following: A) The percentage of butterflies in the population that are heterozygous. B) The frequency of homozygous dominant individuals. Question 5 A rather large population of organisms have 396 red-sided individuals…
- QUESTION 1. Plant A is 2n = 40, and plant B is 2n = 42. If crossed, they produce a hybrid plant. How many chromosomes are found in a somatic cell of the hybrid? a) 42 b) 82 c) either 40 or 42, depending on which plant was female d) 41 e) 40QUESTION 27 Identify the most accurate statement: a. Sexual reproduction is often costly due to the need to find a mate. b. Sexual reproduction results in more offspring per mother. c. Asexual reproduction is always bad for a species. d. Aexual reproduction is associated with an increase in heterozygosity.Question 2. A widow's peak hairline is a dominant trait and a straight hairline is a recessive trait. What will be the genotypes and phenotypes of children of a homozygous dominant parent and a heterozygous parent? a) Construct a Punnett Square - List gametes in the area with the dashed line and the genotypes of the offspring in the area with the sold line. b) Genotypes of Children-c) Phenotypes of children-
- The advantage of chorionic villi sampling over amniocentesis is that Chorionic villi sampling: a. detects chromosomal abnormalities not detected by amniocentesis. b. can give results much earlier in the pregnancy than amniocentesis. c. is less likely to cause more miscarriages than amniocentesis. d. can detect chemical abnormalities not detected by amniocentesis. ...explain.Answer choices: A) Fertilization B) meiosis C) zygote D) gamete E) germ cellQuestion #1. What are the significance of APOPTOSIS. State whethear it is a developmental phenomena or not, support your answer. Question #2. What are the significance of MEIOSIS. State whethear it is a developmental phenomena or not, support your answer.
- Need urgent help with this question. Why do siblings, who share the same parents, look similar but not identical. Refer to the opportunities for genetic variability in meiosis in the explanation. (Grade 11 Bio)Question #1. What are the significance of GAMETOGENESIS. State whethear it is a developmental phenomena or not, support your answer. Question #2. What are the significance of FERTILIZATION. State whethear it is a developmental phenomena or not, support your answer. Question #3. What are the significance of ORGANOGENESIS. State whethear it is a developmental phenomena or not, support your answer.QUESTION 36 Which of the following occurs during meiosis in eukaryotic spermatogonia? A. One diploid cell becomes two diploid somatic cells. B. One haploid cell becomes two haploid somatic cells. C. One haploid cell becomes one diploid gamete. D. One diploid gamete becomes two haploid gametes. E. One diploid cell becomes four haploid gametes.
