Answer:
By the end of meiosis, four cells will be created, each with one of the chromatids from the tetrad. Also, don't forget that there are 23 different tetrads formed during meiosis because each chromosome 1-23 will have a tetrad.
In humans, four tetrads form during the synapsis of meiosis.
In humans, a total of four tetrads form during the synapsis of meiosis. Synapsis occurs during Prophase I of meiosis, where homologous chromosomes pair up and form a structure called a bivalent. Each bivalent consists of two pairs of sister chromatids held together by a protein structure called a synaptonemal complex. Since there are 23 pairs of chromosomes in humans, there will be 46 total tetrads formed during meiosis, as each homologous pair forms a tetrad.
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Courtship and mating rituals are diverse and can vary greatly among different animal species. They are typically involved in attracting mates, establishing pair bonds, and ensuring successful reproduction.
1. Courtship and Mating Rituals Exist: Many animal species have elaborate courtship and mating rituals. These behaviors can serve various purposes, such as displaying fitness and attractiveness to potential mates, establishing territory, or demonstrating parental abilities.
2. Absence of Courtship and Mating Rituals: Some animal species may not exhibit elaborate courtship or mating rituals. This can occur in species where mating opportunities are abundant or where the reproductive process is straightforward without the need for elaborate displays.
The presence or absence of courtship and mating rituals can depend on various factors, including ecological pressures, social structure, reproductive strategies, and evolutionary history of the species. Different species have evolved different strategies to maximize their reproductive success, and these strategies can manifest as complex courtship rituals or simpler methods of attracting mates.
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Answer:
what grade
Explanation:
Answer:
Option 3. increased its dependence on foreign oil sources.
Explanation:
The VanHelmont experiment consists of a measure of the amount of soil before and after a plant grows.
He wants to demonstrate the independence of soil.
After five years he measures the amount of soil and only 2oz gone from the initial amount of soil when the plant weight much more.
The conclusion was the plant use water to grow, and not the soil.
Afterward, he discovers CO2 but, not until the discovery of photosynthesis we all knew how everything in plants works.
B. a segment of a protrein
C. a part of the cell membrane
D. a complete protein
The answer is A. a segment of DNA