A: Answer: Option 'C' is correct. Over 10 million students from across the world are already learning Started for Free. There are several possible explanations, one of which is that the variation that sexual reproduction creates among offspring is very important to the survival and reproduction of the population. A: Meiosis consists of two divisions namely meiosis I and meiosis II. The chromosome "arms" projecting from either end of the centromere may be designated as short or long, depending on their relative lengths. The sister chromatids remain tightly bound together at the centromere. Sexual reproduction results in genetic variation for several reasons: Life cycle of sexually reproducing organisms: Sexually reproducing organisms can have different types of lifestyles: A: Mitosis and meiosis are the types of cell division in which the cell and its chromosomes divide and…. The couple engages in sexual intercourse for internal fertilization to take place. A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…. Q: For each statement below, select mitosis if that statement is true only for mitosis. The male and female sex cells (i. e., egg and sperm) are the end result of meiosis; they combine to create new, genetically different offspring. All species co-evolve with other organisms; for example predators evolve with their prey, and parasites evolve with their hosts. Females have egg cells, and males have sperm.
The Self-made Beauty of the Centriole - Nautilus. In contrast, the dominant form of the bryophytes, such as mosses and liverworts, is the gametophyte. The two cell divisions are called meiosis I and meiosis II. Conjugation is different from syngamy in such a way that two organisms come together in a temporary fusion (e. g. by a cytoplasmic bridge) to exchange micronuclear material. This cell plate will ultimately lead to the formation of cell walls that separate the two daughter cells. This extra dose of specific genes can lead to a number of functional challenges and often precludes development.
The plant sex organ is the flower. Syngamy refers to the fusion of haploid sex cells resulting in the formation of a diploid zygote. Cells are then made to swell using a hypotonic solution so the chromosomes spread apart. The zygote immediately undergoes meiosis to form four haploid cells called spores.
Fertilization between the gametes forms a diploid zygote. A: Mitosis: it is a type of cell division in which a diploid (2n) mother cell divides once and produce…. During S phase During…. The risk of nondisjunction increases with the age of the parents. At this point, the resulting diploid cell is called a zygote. You may recognize these four phases from mitosis, the division of the nucleus that takes place during routine cell division of eukaryotic cells. Bacterial conjugation is essential to bacteria. The G1 phase, which is also called the first gap phase, is the first phase of the interphase and is focused on cell growth. During Mendel's lifetime, inheritance was an abstract concept that could only be inferred by performing crosses and observing the traits expressed by offspring. A: Click to see the answer. The semen containing sperm cells is released by the male into the female's reproductive organ. There is also the obvious benefit of not requiring another organism of the opposite sex. Q: four gametes are produced from a single meiotic division. The product of meiosis is four haploid daughter cells.
Hippopotamuses give birth to hippopotamus calves, Joshua trees produce seeds from which Joshua tree seedlings emerge, and adult flamingos lay eggs that hatch into flamingo chicks. In mitosis, the end product is two cells: the original parent cell and a new, genetically identical daughter cell.
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