Read the statements below and then choose the best answer. I. Triploids are a genetic dead due to the formation of abnormal gametes II. Speciation is always a slow and gradual process. III. Gene flow can cause speciation to occur more rapidly Group of answer choices Both II & III are true All three statements (I, II & III) are true Only II is true Only III is true Only I is true Both I & III are true

Read the statements below and then choose the best answer. I. Triploids are a genetic dead due to the formation of abnormal gametes II. Speciation is always a slow and gradual process. III. Gene flow can cause speciation to occur more rapidly Group of answer choices Both II & III are true All three statements (I, II & III) are true Only II is true Only III is true Only I is true Both I & III are true

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter1: The Study Of Life

Section: Chapter Questions

Problem 2VCQ: Figure 1.7 Decide if each of the following is an example of inductive or deductive reasoning. All...

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QUESTION 4 Is crossing over a good or a bad thing? O A. a bad thing because it makes offspring with the wrong number of chromosomes O B. a good thing because it reduces the variety so each member of a species is as similar to the others as possible C. a bad thing because it mixes two kinds of DNA D. a good thing because it creates lots of genetic combinations and varieties within a species Click Save and Submit to save and submit. Click Save All Answers to save all answers. 000 20 000 F6 F5 F4 F2 F3 F1 0%
A Which of the following is the best interpretation of 78 39 the diagram below? Process A shows Process A shows Process A shows Process A shows fertilization and meiosis and Process mitosis and Process meiosis and Process Process B shows B shows DNA B shows DNA B shows fertilization. replication. replication. meiosis. Sign out V1 9:19 Music off Zoom In 100e Lenovo
You are traveling again as the science officer and discover a new species on planet Barkley. You are able to obtain some cells from the organism and know that it reproduces sexually. You make a chromosome spread and from what you know about human cells, identify the various regions indicated by the arrows, create a karyotype and predict the number of chromosomes. Label Label Label Label OXC AX Total number of chromosomes Haploid number Diploid number Based on humans, what can you predict about the sex DO karyotype IDO TU
Which of these are true statements about meiosis? Select all that apply O It results in cells that are genetically identical to the original cell It results in cells that are genetically different from each other and the original cell O It produces cells needed for sexual reproduction O It is the process by which multicellular organisms grow and develop O It produces cells with half as many chromosomes as the original cell
pletion Status: A Moving another question will save this response. Question 6 When a cell has two complete sets of chromosomes, it is: O a. complete O b. triploid c. haploid O d. diploid O e. duplicated > A Moving to another question will save this response. -A:-T ENG 4) G I
Gametogenesis is d. The process of gamete formation which goes through one division of meiosis Oc. The process of gamete formation which goes through one division of mitosis b. The process of gamete formation where the number of chromosomes is halved for 23 chromosomes a. The process of gamete formation where the number of chromosomes is doubled for 46 chromosomes None of the choices are correct Question 3 or False: Meiosis undergoes two sets of divisions.
Figure 1.7 Decide if each of the following is an example of inductive or deductive reasoning. All flying birds and insects have wings. Birds and insects flap their wings as they move through the air. Therefore, wings enable flight. Insects generally survive mild winters better than harsh ones. Therefore, insect pests will become more problematic if global temperatures increase. Chromosomes, the carriers of DNAr separate into daughter cells during cell division. Therefore, each daughter cell will have the same chromosome set as the mother cell. Animals as diverse as humans, insects, and wolves all exhibit social behavior. Therefore, social behavior must have an evolutionary advantage.
In which type of genetic sex determination (i.e. sex is determined by genetic differences, not the environment) system are there no special sex chromosomes? Group of answer choices A. ZW determination B. environmental sex determination C. haplodiploidy D. XY determination
Almost all cells in an organism contain two complete sets of chromosomes. Reproductive cells contain only one set. Cells produced by mitosis are diploid while meiosis produces haploid cells. Haploid and diploid are designated by the algebraic notation n and 2n, respectively. Below is a table that shows the haploid or diploid numbers of a variety of organisms. Complete the table and use it to answer the given questions. Organism 1. Amoeba 2. Chimpanzee 3. Earthworm 4. Fern 5. Hamster 6. Honeybee 7. Human 8. Onion 9-10. What are the haploid numbers for the two plants listed in n 2n 25 24 18 1010 22 32 46 16 the table? 11. Based on the table above, which organism's diploid numbers are closest to that of a human? 12. Explain why a diploid number is always even. 13-14. Which organism's haploid and diploid numbers do you find most surprising? Why? 15. Why is it important that each organism has specific number of chromosomes?
Organism 1 has the genotype AaBbCc and Organism 2 has the genotype AABBCc. Select the statement which is FALSE Question 5 options: Organism 1 is a heterozygote Organism 1 and 2 can both pass on the dominant allele "C" Organism 1 and 2 have the same number of gametotypes possible Organism 2 can never have offspring homozygous for the recessive "a" allele
the choices are homogenization and speciation for all three
Question 3 Review the variety of life cycle. This is a multiple answers question. Which statement is true about the life cycles? O In an animal life cycle, meiosis produces gametes (n). Gametes are the only haploid cells in animals In an animal life cycle, zygote divides by mitosis to develop into a multicellular organism. Plants and some algae exhibit an alternation of generations in their life cycles. O In the life cycles of plants and some algae, the diploid sporophyte, makes haploid spores by meiosis. O in the life cycles of plants and some algae, the diploid sporophyte, makes haploid spores by mitosis. O In most fungi and some protists, the only diploid stage is the single-celled zygote; there is no multicellular diploid stage O The haploid adult in fungi and plants produces gametes by mitosis.