Meiosis, a unique way to produce gametes: Meiosis, a special type of cell division, is essential for sexual reproduction. The cells produced by meiosis are called gametes (in higher animals) or spores (in flowering plants). Male gametes are also known as sperm; female gametes are known as ...
What are the general purposes of mitosis and meiosis? How are the cells produced different in terms of chromosome number and general function? Why meiosis is necessary for gametogenesis? What are gametes formed by? Describe the process of egg production ...
How many chromosomes are there in human cells formed by mitotic cell division and meiotic cell division? How many cell divisions occur for the production of a gamete? How much DNA does a cell have after meiosis? What is the diploid (2N) number of chromosomes in humans? How many chromosom...
In Ellobius, similar chromosome morphology masks the functional heteromorphism of the male sex chromosomes, which can be seen at meiosis. The existence of two sexes and two types of gametes makes the exchange of genetic information possible, which is the main benefit of sexual reproduction. ...
Explain how meiosis and fertilization lead to varied offspring. How do independent assortment and segregation affect the gametes formed during meiosis? How does independent assortment, crossing over, and random fertilization lead to diversity in eukaryotic offspring?
Are gametes always haploid? Gametes are formed independently either from diploid or haploid parents. Gametes arealways haploid. Can a human have 24 chromosomes? Sequencing all 24 human chromosomes uncovers rare disorders. Extending noninvasive prenatal screening to all 24 human chromosomes can detect ge...
reproduction occurs after the formations of male and female gametes, which later fertilize to give rise to an embryo. the complete process of fertilization in humans is called internal fertilization as it occurs within the body of a female. as human beings are viviparous organisms, we give birth...
Yet the pilidial surface area increases by a factor of ten to one hundred during its larval life [14]. How then does the pilidium larva grow? There are three possibilities. First, it could be that the pilidium’s larval body is essentially eutelic, like many small animals: perhaps ...
The ovaries make the eggs, or oocytes, which are the female gametes, and produce estrogen, the female sex hormone. Estrogen causes female secondary sexual characteristics such as pubic hair, breast development, widening of the pelvis and deposition of body fat in hips and thighs. The ovaries ...
Explain how mitosis results in two genetically identical diploid cells and meiosis results in four genetically non-identical haploid cells. Define and explain what meiosis is and its process. If sexual reproduction in humans occurs correctly, the gametes formed by meiosis are ___ & the zygotes fo...