Meiosis is a reduction division because when it occurs the number of chromosomes in the offspring lessens from that of in the parent.... <span>Meiosis begins with a diploid cell, but produces four haploid cells.</span>
: <span><span> Sex linkage is the phenotypic expression of an allele that is related to the chromosomal sex of the individual. This mode of inheritance is in contrast to the inheritance of traits on autosomal chromosomes, where both sexes have the same probability of expressing the trait. Since, in humans, there are many more genes on the X than there are on the Y, there are many more X-linked traits than there are Y-linked traits.
</span><span> In mammals, the female is the homogametic sex, having two X chromosomes (XX), while the male is heterogametic, having one X and one Y chromosome (XY). Genes that are present on the X or Y chromosome are called sex linked genes.
Autosomal: Pertaining to a chromosome that is not a sex chromosome; relating to any one of the chromosomes save the sex chromosomes.
People normally have 22 pairs of autosomes (44 autosomes) in each cell together with two sex chromosomes (X and Y in the male and XX in the female). </span></span>
<span>Recycled water vapour from the flask with heated water (represents Earth's early ocean) represented the rain. Those vapour supposed to be similar to the water evaporations from lakes and seas, before going into the atmosphere and forming the rain.</span>
Apparatus also contained:
<span>· </span>mixture of gases similar to those found in Earth's early atmosphere, water (H2O), methane (CH4), ammonia (NH3) and hydrogen (H2) that were circulated inside a sterile array of glass tubes and flasks connected together in a loop.
<span>· el</span>ectrodes delivered an electric current which was simulating lightning
<span>· t</span>he flask with heated water
Here are the choices: (correct me if your multiple choice question is different)
a.
Logistic growth curves are common for R-selected species.
b.
Logistic growth curves are J-shaped.
c.
No organisms in nature experience logistic growth rates.
d.
Logistic growth curves increase exponentially at first, then experience slowed growth rates
For this question, the answer would be D.
Hope this helped!
Answer:
tetrads change orientation as a lineup along the center of the cell
