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Questions tagged [gamete]

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0answers
24 views

What is the color of human ovum?

What is the color of human egg-cells? This might help you. If there's any problem in my question please inform me. Thanks!
0
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1answer
58 views

Fertilization of the human egg- where does our centrosome come from?

Is there a centrosome in a human egg cell? Is the reason why the egg cell remains paused before meiosis 2 because there isn't a centrosome, and it only divides when the sperm fertilizes it thus it can ...
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1answer
56 views

Can Meiosis 2 be called as mitosis?

I know Meoisis involves a reductional division and an equational division.Say if I am asked a question to find the no. of divisions an egg mother cell undergoes in a Polygonum type division to form ...
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0answers
87 views

Does Meiosis I produce haploid gametes?

According to my textbook (and other online sources), Meiosis I produces two haploid cells. After Meiosis (does not note if after Meiosis II), haploid gametes are produced. Does this information mean ...
4
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2answers
223 views

Doesn't meiosis form two pairs of similar cells and two pairs of opposite cells?

I am learning about meiosis in biology. I've learnt that the crossing-over in metaphase I only exchanges small portions of DNA at the tips of the chromosomes. Doesn't this mean that: After meiosis I, ...
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1answer
86 views

What are allogametes? please explain [closed]

Allo means different or unrelated I guess.Please clear me the meaning with some examples.
6
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1answer
528 views

What is this Sacrificial Reproductive Strategy Called?

The reproductive strategy of salmon is 'suicidal'. Before breeding the males metamorph permanently into a form suited for the breeding season but unsuited for survival. The females devote so much of ...
0
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1answer
85 views

Why are siblings unidentical? (Which chromosome of the pair do gametes have?) [closed]

I know that a normal human cell has 23 pairs of chromosomes (total: 46). On the other hand, a gamete has only 23 chromosomes. Which chromosome does the gamete choose out of each pair? And if "One of ...
7
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1answer
2k views

Isogametes and oogametes

I have found the following definitions of different types of gametes: isogametes: gametes looking and behaving the same; heterogametes: gametes different in size or in behaviour; oogametes: gametes ...
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1answer
467 views

Are there multicellular isogamous species?

Are there multicellular isogamous species? Seeking through the examples of wikipedia I would tend to think that there are no multicellular isogamous species.
1
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1answer
85 views

Which sex is homogametic in side-blotched lizards?

I'm just trying to find out whether the male side-blotched lizard is the hetero- or homogametic sex in side-blotched lizards (Uta stansburiana) - some reptiles are ZW system (female heterogamete) and ...