DNA Genes Meiosis and Mitosis Questionnaire
DNA Genes Meiosis and Mitosis Questionnaire Assignment
Like mitosis, meiosis is a form of eukaryotic cell division. However, these two processes distribute genetic material among the resulting daughter cells in very different ways. Mitosis creates two identical daughter cells that each contain the same number of chromosomes as their parent cell. In contrast, meiosis gives rise to four unique daughter cells, each of which has half the number of chromosomes as the parent cell. Because meiosis creates cells that are destined to become gametes (or reproductive cells), this reduction in chromosome number is critical — without it, the union of two gametes during fertilization would result in offspring with twice the normal number of chromosomes!
Apart from this reduction in chromosome number, meiosis differs from mitosis in yet another way. Specifically, meiosis creates new combinations of genetic material in each of the four daughter cells. These new combinations result from the exchange of DNA between paired chromosomes. Such exchange means that the gametes produced through meiosis exhibit an amazing range of genetic variation.
Finally, unlike mitosis, meiosis involves two rounds of nuclear division, not just one. Despite this fact, many of the other events of
meiosis are similar to those that occur in mitosis. For example, prior to undergoing meiosis, a cell goes through an interphase period in which it grows, replicates its chromosomes, and checks all of its systems to ensure that it is ready to divide. Like mitosis, meiosis also has distinct stages called prophase, metaphase, anaphase, and telophase. A key difference, however, is that during meiosis, each of these phases occurs twice — once during the first round of division, called meiosis I, and again during the second round of division, called meiosis II.
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QUESTION 27 E Referring to the same figure, which letter shows where the new nucleotide will be inserted when DNA is replicated? ОА ОВОС ОООЕ Click Save and Submit to save and submit. Click Save All Answers to save all answers. Ch15 GeneExpres…pptx Ch 14 DNA replica….pptx o RI – O Type here to search QUESTION 27 E Referring to the same figure, which letter shows where the new nucleotide will be inserted when DNA is replicated? ОА ОВОС ОООЕ Click Save and Submit to save and submit. Click Save All Answers to save all answers. Ch15 GeneExpres…pptx Ch 14 DNA replica….pptx o RI – O Type here to search 37 38 390 40 QUESTION 37 to, The portion of the molecule labeled 5 is: the attached amino acid. a single-stranded region. the codon. Click Save and Submit to save and submit. Click Save answers to save all arsyers. Oh14 DNA replica.pptx Ch15 GeneExpres….pptx O Type here to search QUESTION 38 Choose the answer that has these events of protein synthesis in the proper sequence. 1. An aminoacyl-tRNA binds to the A site. 2. A peptide bond forms. 3. the initiator tRNA binds to the P site. 4. A small ribosomal unit associates with the mRNA. 5. RNA with the growing peptide translocates to the P site. O 1, 3, 2, 4,5 a O 4,3,1,2,5 4,1, 3, 2,5 0 4,1,2,5,3 5, 4, 3, 2, 1 Click Save and Submit to save and submit. Click Save All Answers to save all answers. Save Ch15 GeneExpres….pptx Ch 14 DNA replica…pptx 1 Type here to search Bi QUESTION 40 What would be a possible sequence of nucleotides in the template strand of DNA that would code for the polypeptide sequence phe-leu-ile-val be U с A UUU Phe UCU UUCS UCC Ser UUA UCA UCG UACHTY UGC}Cys C . UAA Stop UGA Stop A UAG Stop UGG Trp UUG }Leu His CUUT CUC С CUA Leu CCU CAUT CCC CAC ΕΡΓΟ CCA CAA) Gln CCG CAG CGU CGC CGA Arg CGG DUUDUCUDUCUDO CUG AAU } Asn AGC} ser AUU ACU AUC lle ACC A Thr AUA ACA AUG Met ACG ААС AAA AGA JArg AMG] Lys GCU GUU GUC ) GAU GGUT GAC | Asp GGC ) Click Save and Submit to save and submit. Click Save All Answers to save all answers. Ch 14 DNA replica…pptx Ch15 GeneExpres….pptx 21 O Type here to search Chp 23 37 38 39 40 Thr THU মভCJ RUC ne AUA ACA AUG Met ACG AAA } LYS AGA Arg AAG AGGJ G GUU GUC GUA Val GUG GCUT GAUT GCC GAC) Asp Ala GCA GAAT Glu GCG) GAGS GGU GGC GGA Gly GGG DOCU O 5′ TTG-CTA-CAG-TAG 3. 5′ AUG-CTG-CAG-TAT 3′. O 3′ AAC-GAC-GUC-AUA 5′. 3′ AAA-AAT-ATA-ACA 5. O 3′ AAA-GAA-TAA-CAA 5′. Click Save and Submit to save and submit. Click Save All Answers to save all answers. Ch15 GeneExpres….pptx Ch14 DNA replica….pptx о 近 Type here to search hp 3 5 Impossible to determine from the picture Click Save and Submit to save and submit. Click Save All Answers to save all answers. Ch 14 DNA replica….pptx Ch15 GeneExpres….pptx o BA Type here to search hp C 56 65 80 91 100 119 120 13140 150 16 17 18 196 333 350 361 37 38 395 40 What end of the molecule is indicated by C? B 3 5 Impossible to determine from the picture Click Save and Submit to save and submit. Click Save All Answers to save all answers. Ch 14 DNA replica…pptx Ch15 GeneExpres….pptx O BI Type here to search hp 尺。 E Which segment of this molecule represents the 5′ end? O A B E QUESTION 27 Click Save and Submit to save and submit. Click Save AZ Answers to save all answers, Ch15 GeneExpres….pptx Ch 14 DNA replica….pptx 1 O Type here to search O QUESTION 25 Black fur in mice (B) is dominant to brown fur (b). Short tails (T) are dominant to long tails (t). What fraction of the progeny of the cross BbTt Bbtt will have black fur and long tails? 3/8 3/16 09/16 1/2 1/16 QUESTION 26 Refer to the picture of the polynucleotide chain shown to the left. Click Save and Submit to save and submit. Click Save All Answers to save all answers, Save All Answe Type here to search o 90 100 110 120 160 180 190 200 60 70 340 350 370 380 390 400 QUESTION 21 How many different haploid cells can this cell form? W Ikan 02 0 4 0 impossible to determine 1 Click Save and Submit to save and submit. Click Save All Answers to save all answers. Ch15 GeneExpres…pptx Ch14 DNA replica….pptx HE Type here to search
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