Answer:
Meiosis produces ________ daughter cells.
A) two haploid
B) two diploid
C) four haploid
D) four diploid
C
At which stage of meiosis are sister chromatids separated from each other?
A) prophase I
B) prophase II
C) anaphase I
D) anaphase II
D
The part of meiosis that is similar to mitosis is ________.
A) meiosis I
B) anaphase I
C) meiosis II
D) interkinesis
C
If a muscle cell of a typical organism has 32 chromosomes, how many chromosomes will be in a gamete of that same organism?
A) 8
B) 16
C) 32
D) 64
B
Explain how the random alignment of homologous chromosomes during metaphase I contributes to variation in gametes produced by meiosis.
Random alignment leads to new combinations of traits. The chromosomes that were originally inherited by the gamete-producing individual came equally from the egg and the sperm. In metaphase I, the duplicated copies of these maternal and paternal homologous chromosomes line up across the center of the cell to form a tetrad. The orientation of each tetrad is random. There is an equal chance that the maternally derived chromosomes will be facing either pole. The same is true of the paternally derived chromosomes. The alignment should occur differently in almost every meiosis. As the homologous chromosomes are pulled apart in anaphase I, any combination of maternal and paternal chromosomes will move toward each pole. The gametes formed from these two groups of chromosomes will have a mixture of traits from the individual’s parents. Each gamete is unique.
In what ways is meiosis II similar to and different from mitosis of a diploid cell?
The two divisions are similar in that the chromosomes line up along the metaphase plate individually, meaning unpaired with other chromosomes (as in meiosis I). In addition, each chromosome consists of two sister chromatids that will be pulled apart. The two divisions are different because in meiosis II there are half the number of chromosomes that are present in a diploid cell of the same species undergoing mitosis. This is because meiosis I reduced the number of chromosomes to a haploid state.
Explanation:
i had those ecact questions hope this helps plz mrk brainliest
If the reaction is endothermic, it means that there is a need for heat to be supplied together with the reactants for the reaction to occur. According to Le Chatelier's principle, increasing the temperature of an endothermic reaction will produce more products. Thus, the answer letter B.
Ans.
Ruminants are those animals that gain nutrients from plant-products or foods by fermenting them in ruminant compartment before digestion. Ruminant compartment is made up of four chambers, rumen, reticulum, omasum, and abomasusm. The smallest ruminant compartment is reticulum, which helps in separation of smaller and larger food particles during digestion.
Thus, the correct answer is option D). 'reticulum.'
Answer:
Mercury
Explanation:
The planet from which you will have the easiest time escaping its gravitational pull is the one with the weakest gravity. Since gravity is directly proportional to mass, the larger or more massive a planet is, the higher the gravity. Therefore, the smallest planet would have the weakest one. Since Mercury is the smallest planet in the solar system, it would also have the weakest gravity, and would therefore be the easiest to escape from. Hope this helps!
Answer:
Answered below
Explanation:
Water is essential for the normal functioning of the organ systems in the body. Dehydration occurs when the water we take in is less than the water we lose. Water is lost fr the body through sweating, breathing, urination and defecation. Disease conditions like diarrhea and vomiting also cause loss of water.
When the body senses dehydration, there is a thirst signal to tell us to drink more water. The body then proceeds to the water leaving through the kidneys thereby conserving water in the body. This explains the concentrated and colored urine during dehydration.
Circulation to the skin and muscles is decreased, leading to dry and clammy skin, muscle cramps, dry eyes etc
The body increases the heart rate and pumps blood to the vital organs such as the brain, lungs, heart and intestines.