QUESTION 21 Double fertilization involves 2 fertilizations, write the cells/nuclei involved with each, their ploidy level (ie. n, n+n, 2n, 3n). Fertilization 1: ,with a ploidy level of ,with a ploidy level of with a ploidy level of Fertilization 2: ,with a ploidy level of with a ploidy level of with a ploidy level of
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Q: QUESTION 13 Assume that a diploid cell (2N=8) contains 4 pairs of chromosomes (3 pairs of autosomes…
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Q: QUESTION 19 What chromosomes belong to a normal human male? O 22 autosomes and two Y chromosomes O…
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Q: Question 11 Speciation is shown in the Phylogenetic Tree below. Ancestral globin gene mes Bl V…
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Q: Question 4 Penguin pigmentation is subject to epistasis of the B alleles by the d alleles. B (black)…
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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 17 Which statement about a dihybrid cross is true? O 1. It results in a genotypic ratio of…
A: A genetic cross that includes two pairs of different and contrasting characters is called the…
Q: Plant A is 2n = 40, and plant B is 2n = 42. If crossed, they produce a hybrid plant. How many…
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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…
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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 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.
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Q: Question 4 Which of the following behaviors of chromosomes explains Mendel's first law (law of…
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Q: Question 31 PART I-Problem Solving A clinical geneticist is investigating a new, rare syndrome,…
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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 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 What genetic structure is represented in this figure? O mutation O chromosome O genetic…
A: The DNA in eukaryotic cells remain associated with histone proteins and form a complex that is known…
Q: QUESTION 8 The fertilized egg is called a zygote, and is considered the ultimate stem cell. True…
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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: QUESTION 69 Prezygotic reproductive isolation can occur O a. during embryo development O b. during…
A:
Q: A cell contains 4 metacentric, 4 acrocentric, and 2 submetacentric chromosomes. Under normal…
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Q: Question 26 Plant 1 has a genotype AaBb. Plant 1 has a genotype AAB . List all posible gamete…
A: Sexual reproduction refers to the form of reproduction that occurs through the union of male and…
Q: QUESTION 12 The B gene codes for hair while the b gene codes for hairless. If B is dominant and b is…
A: Alleles are the alternative forms of a gene that are located on the same locus of a homologous…
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 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. 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 5 Review meiosis. This is a multiple answers question. Which statement is true about the…
A: Answer : option 3 is right option (in anaphase 1, pairs of homologous chromosomes separate). All…
Q: An organism that is heterozygous for two traits with the genotype AaBb can form sperm with all of…
A: Heterozygous individuals are those having different alleles of a particular genes. Heterozygous, as…
Q: Question 13 What is the ratio of phenotypes in the offspring produced by the cross Aa x Aa? Assume…
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Q: Question 28 For the statement below tell which from the list below applies 1. meiosis 2. mitosis 3.…
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Q: QUESTION 1 In pea plants, round (R) is dominant to wrinkled (r), yellow (Y) is dominant to green…
A: A cross between two individuals with known genotype can tells us about the probability of various…
Q: Question 3. In a cell that has been arrested prior to metaphase due to a single unaligned…
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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…
Q: An organism that is heterozygous for two traits with the genotype AaBb can form sperm with all of…
A: Heterozygosity is the condition when an organism has two different alleles of a gene, one on each of…
Q: Question 3. In a cell that has been arrested prior to metaphase due to a single unaligned…
A: Introduction :- Metaphase is the second-most compacted and coiled stage of mitosis in the eukaryotic…
Q: Albinism is caused by an autosomal recessive allele that interferes with skin pigmentation in…
A: Dear student, We are authorized to answer three subparts at a time, since you have not mentioned…
Q: QUESTION 9 During metaphase II of meiosis, O pairs of homologues chromosomes line up in the centre O…
A: (As per our guidelines, we are required to answer only the first question in case multiple questions…
Q: QUESTION 10 Can a woman with blood type A have a child with blood type O with a man who is AB? O…
A: The ABO blood group system is controlled by multiple allelic system. There are three types of…
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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- 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 !! D2Discuss how seeds/reproductive cells have developed from the most basic, simple plant bodies (algae) up through the most complex plant bodies (flowering plants). I’m looking for a 2-3 paragraph answer here, please!This is an image of a lily flower. Based on your reading, please click the part of the flower where pollen is deposited for fertilization. O Targets placed: 0/1 You can place up to 1 targets Undo Delete selected Remove All
- Discuss with your teacher about(i) haploid insects and lower plants where cell-division occurs, and(ii) some haploid cells in higher plants where cell-division does not occur.Date: F/21 Gr-5 B/G ub: SCIENCE ither print to complete this worksheet or write only answers in the notebook. In this exercise. you wiil compiete sentences about poiliination and fertilization. Use the words in the box to elp you complete the sentences. You will use some words more than once. Wind Insects Seeds Pollen Stigma Anthers Nectar male cell Anthers Ovary Fertilization 1. The of flowers make a yellow powder called to the of 2. Pollination happens when pollen moves from the a flowers of the same type. 3. Some plants use to blow the pollen far away. 4. Insects get on their bodies when they visit flowers to feed on 5. The and eggs join together inside the during This is how is formed, 6. The becomes the fruit. II. Circle whether the statements are True or false True False Egg cells are made in an ovary. True False transfer of pollen to stigma is called pollination. True False Fertilization happens in the ovary. Frue False An egg cell must be fertilized to become an embryo. True…Below are photos of an conifer immature ovulate cones (I.s.) at and 40x. Make a sketch of the 10x slide and label the following structures: ovuliferous scale, sterile bract, micropyle, megasporangium, megaspore mother celli (Note: do you see the pollen grain situated in the micropyle of a scale?)
- Z File Arial Home 12 8 Type here to search Insert S W X Draw B I U ab 13 #3 3 LLJ Layout E C Review f4 D S X₂ R View O E LL x² 15 Task 6 V AAEEEE A) (1) What types of cells are produced by meiosis and mitosis? C 5 (DJ ACTUAL (c) Why is the curve at A - B steeper than the THEORETICAL line? de in (ii) Explain the significance of the difference in the number of chromosomes. (i) What are the possible uses of the cells produced from mitosis and meiosis? f6 D T G The Cell Assignmen: 22.23 - Saved 6 B 17 Y H W & 7 18 hp 7 N U 19 0 8 4 u M 10 9 Heading 1 15 K ä (A.C.2.3) F11 Heading 2 112 Mahammac Zawia Normal 9 C 7°C Mostly cloudy ^940) scroll diam 19 pause brick Share 12:00 AM 11/24/2022 insert backspace I Ę₂This figure summarises the life cycle of a seed plant. The blue circles named A and B represent the sexually mature individual of each phase of the life cycle. 1) What is this life cycle called? 2) Plant B is in the diploid phase. What is another name for this plant? 3) If A is the haploid phase, in which phase would you find sepals? Write just the letter of the individual corresponding to the correct phase 4) If B is the haploid phase, in which phase would you find synergids? Write just the letter of the individual corresponding to the correct phase 5) If B is the diploid phase, in which phase would you find the nucellus? Write just the letter of the individual corresponding to the correct phase 6) If A is the diploid phase, in which phase would you find the sperm cells? Write just the letter of the individual corresponding to the correct phase 7) If A is the diploid phase, in which phase would you find selection on flower colour? Write just the letter of the individual corresponding…z e 50 μm Figure 3. Grasshopper testis with differential staining and viewed under a microscope. Encircle the cell and label the specific stage in the meiosis it displays. Identify as many as you can witha minimum of two cells representing different stages. Make sure to specify whether the stage belongs to meiosis I or II. If you identify a cell at prophase I, then specify the substage.
- State 3 important results of meiosis. For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). TTT Arial ✓ 3 (12pt) ✓ T-E One parent cell undergoes mitosis, which results in the division of two identical daughter cells. Definition of primal Mitosis is the mechanism of reproduction in unicellular eukaryotes. For eukaryotes with many cells: Mitosis boosts cell production and promotes bodily growth and development.Damaged tissues or organs can be repaired by mitosis.Mitosis is a kind of reproduction for vegetative organisms that results in offspring with the same genotype as the parent.Now examine the demonstration slide of a c.s. of an immature lily anther and identify the four pollen sacs, or microsporangia (see text Figure 19-14a, page 466). Note the layer of cells immediately surrounding the microspore mother cells (microsporocytes, or pollen mother cells). This is the tapetum. 3. Label the pollen sacs and microsporocytes in Figure 2. below. Figure 2. Lilium immature anther c.s. Photo by Carolyn Alling 4. What is the ploidy level (haploid or diploid) of the microspore mother cell? Of the megaspore mother cells? (29/10 19eal to toping 125WRITE ABOUT A THEME: ORGANIZATION Cells are the basicunits of structure and function in all organisms. A key featurein the life cycle of plants is the alternation of multicellularhaploid and diploid generations. Imagine a lineage of floweringplants in which mitotic cell division did not occur between theevents of meiosis and fertilization (see Figure 30.12). In a shortessay (100–150 words), describe how this change in the timingof cell division would affect the structure and life cycle of plantsin this lineage