Overview of Meiosis

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#meiosis #CellDivision #biology
SCIENCE ANIMATION TRANSCRIPT: In this lesson, we'll look at an overview of the type of cell division called meiosis. Meiosis takes place in an organism's reproductive structures called gonads for the sole purpose of producing haploid gametes that are genetically different. These haploid gametes are sperm cells in the male and eggs in the female. In the plant kingdom, pollen grains contain the male gamete, while structures called ovules contain the female gamete. Let's take a brief look at how meiosis produces gametes. A cell about to undergo meiosis will have already replicated its chromosomes during interphase of the cell cycle. This original cell is diploid, which means it has two sets of chromosomes, one from each parent, sometimes written as 2n. Through two stages of cell division, meiosis produces four genetically different haploid gametes, sometimes written as n. For this reason, meiosis is also called reduction division. It reduces the total chromosome number in half. So, when the haploid sperm cell and haploid egg cell unite to form a zygote during fertilization, the diploid number of chromosomes is restored in the resultant zygote. We'll examine the details of meiosis one and two in a separate video. [music]
NSV15016

[@wallrider4194]

It’s been so long since you uploaded the transcription video, where is the translation video?

[@jimblauth3247]

Sure, it's an overview video, but the plant biology is oversimplified and misleading. As @Angelo-Rules was outlining, there's a multicellular haploid generation between the diploid plant that produced the flower and the gametes in the pollen and ovaries of that flower. A bias toward teaching only human biology misses most of the incredible unity and diversity of life on our planet.

[@sanujanawickramasinghe]

👍👍👊

[@Angelo-Rules]

Plant gametes are produced by mitosis not meiosis. Spores are produced by meiosis.

[@muaz5515]

rlly?

[@sanujanawickramasinghe]

that is questionable thing isnt it???

[@RoyalAura-ze2yt]

Plzz upload the videos teacher it helps alot to understand the topic through the animation and your super explanation
Plzz upload the videos 😢

[@BioBloom10M]

Best❤

[@muaz5515]

the guys voice is very clear, perfect for educational videos