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- 7. A geneticist has a strain of diploid plants. The gene orders for two of the chromosomes in this strain are AB.CDEF and KL.MNO. He subjects the plants to x-ray treatments and induces a reciprocal translocation between these two chromosomes. The translocation chromosomes are AB.CNO and KL.MDEF. Diagram the pachytene configuration in translocation heterozygotes.1. Select the correct mode of reproduction that fit the following condition. "An individual reverses its sex during its lifetime" A. Budding B. Fragmentation C. Sequential hermaphroditism D. Hermaphroditism 2. Identify the event in plant that does not involve auxin hormone. A. Cell wall acidification B. Cell elongation C. Cell positive phototropism D. Cell positive geotropism 3. Identify the difference between endocrine and exocrine glands. * A. Endocrine glands produce hormones; exocrine glands produce neurohormones. B. Endocrine glands only affect cells in the immediate area; exocrine glands affect cells in the distance area. C. Endocrine glands secrete into the interstitial fluid; exocrine glands release secretions into ducts. D. Endocrine glands have distinct structures; exocrine glands may be specialized in other tissues.2. In corn, male sterility is controlled by maternal cytoplasmic elements. This phenotype renders the male part of corn plants (i.e. the tassel) unable to produce fertile pollen; the female parts, however, remain receptive to pollination by pollen from male-fertile corn plants. However, the presence of a nuclear fertility restorer gene F restores fertility to male-sterile lines. Using the following color-coded circles, simulate the crosses indicated below. Put the illustrations of crosses in the spaces provided. Be sure to include in the labels the genotypes and phenotypes of the offspring in each cross. Big light green circle Big orange circle Small orange circle Small half-light green-half-orange circle - Ff nucleus Small light-green circle - male-sterile cytoplasm - male-fertile cytoplasm - FF nucleus - ff nucleus a. Male-sterile female x FF male (the term male-sterile is an adjective that describes the female) b. Male-sterile female x Ff male (the term male-sterile is an adjective…
- no need to explain just need to know if its a,b c, or d 1.) Alternation of generation refers to the alternation of diploid and haploid generation. What is the difference between the alternation of generation in moss and pine? a.) In moss, gametophyte is dominant; whereas, in pine, sporophyte is dominant. b.) In moss, sporophyte is dominant; whereas, in pine, gametophyte is dominant. c.) In moss, gametophyte is dependent on sporophyte; whereas, in pine, sporophyte is dependent on gametophyte. d.) In moss, meiosis occurs during gamete formation; whereas, in pine, it occurs in zygote formation. 2.) Meiosis involves two phases, meiosis I and meiosis II. This type of cell division occurs during the formation of both sperm and ovum. The first meiotic division of the primary spermatocyte results in two secondary spermatocytes. .What is the result of the first meiotic division of the primary oocyte? a.) two secondary oocytes b.) two polar bodies c.) two ovum d.) one secondary oocyte and…VOLTE1¹67 3:41fb. : +91 97532 46070 21 जुलाई, शाम 5:38 → Class XII 1. Draw a 2. Explain 7. Seed (B) Fruit Jawahar Navodaya labelled Subject: Biology laya Vidyalaya Buranabad ujjain -2 diagram of Embryo Insects. sac 2and microsporagium. Megasporogeneris. Pollen grains Embryo Development. by Pollination. 3. Draw a labelled diagram of female reproductory system. 4. List hormones of pregnancy and their role. 5. Project Report (Topic given) 6. Make a Chart / Model from any, subject or topic. from Chapter 2 and 3. on Do survey diffcunt pollinating Agent within your Economic valuu. ⇓ C. 4. O טPlease Aspa
- Using the 'ABC model' of floral development, what would you expect the flowers of a mutant plant to look like if both A & B gene function had been destroyed? Edit View Insert Format Tools Table 12pt v Paragraph v BIU A 田 !! D221) How does a seed differ from a spore? Group of answer choices A seed has a protective coating, while a spore does not A seed must start growing right away, while a spore can lie dormant through adverse environmental conditions A spore has a protective coating, while a seed does not A spore contains an embryo, while a seed contains just a single cell A seed contains a food reserve, while a spore does not4. A student investigated the effect of plant growth substances (IAA and GA) on the elongation of pea stems, the students marked a 10mm length of stem on each of four plants and applied growth substances to the stem. Figure 2 shows a graph of the student's results. Length of stem section (mm) 161 14- 12- 10+ 0 Describe b) c) Suggest a suite 10 ************ 20 30 Time (h) 40 IAA and GA IAA GA control 50 60 minem & wth of the co crease in length of 4.9mm. The movime after application of growth substances was 4.2min. Calculate the percentage mereas (2) treatment for the control (2 d) Suggest how the student could have improved their investigation (5) sepere *********** ************
- 7. santan flower has a regular symmetrya. trueb. false8. squash blossoms have a solitary cyme inflorescencea. trueb. false Thank youPlease answer the following questions for me: 1 Why is it important to determine whether or not genes that provides insecticide and fungi resistance may be transferred to wild sunflowers? 2. What factors would you measure (response, or dependent varibles)? 3. Fitness can be measured as a seed set (seed production) Why is it important to measure as seed production? 4. Cultivated sunflowers have one stem that produces one single large flower head, while wild flowers have many branches that produce many flowers. Why is it important to measure branching pattern (number of branches produced by F1 plants, backcrosses and wild type sunflowers? 5. Why is it important to include blackcrosses in the exeriment?L Larvae and pupae per Bt plant 100 www -- Mosaic, Cry1Ac plant --0-- Mosaic, Cry1C plant -- Sequential, Cry1Ac plant --- Sequential, Cry1C plant Pyramid, two-gene plant I 1 1 1 3 6 9 12 15 18 21 24 Generation Figure 1. The figure above shows the average numbers of larvae and pupae of the moth found per Bt plant in each of the treatments. Note the logarithmic scale on the y-axis. Question 8. Assuming that the differences in moth density are due to toxicity differences, which of the different strategies was most successful at impeding the evolution of resistance in the moths between generation 12 and generation 24? 6 TOKH J Yourself