Answer:
Thymine, which is often abbreviated to T or Thy, can also be referred to as 5-methyluracil. It is one of the pyrimidine bases found in the nucleic acid of DNA, along with adenine, guanine and cytosine (A, G and C). These bases are the building blocks of DNA and life form on earth.
Explanation:
can someone help me on my most recent question, its math and its multiple choice
Missing choices:
a) hermaphroditism
b) budding
c) fragmentation
d) fission
e) regeneration
<span>Sexual reproduction includes a reproductive pattern called A. HERMAPHRODITISM.
Hermaphroditism is defined as a condition that a single organism has both male and female reproductive organs.</span>
Graphs show information using visuals and tables use exact numbers. Each way organized data differently, but depending on the question, sometimes one is better than the other..
<span>
</span>
Answer:
Explanation:
Meiosis is a form of cell division that occurs in the sex cells of organisms. It ensures the reduction of a diploid cell to an haploid cell to allow for the formation of a diploid zygote after fertilization (contribution of both parents haploid sex cells to give a diploid zygote). Thus, this process is very essential and important.
The reduction is accomplished by 2 divisions after the duplication of chromosomes
- first division: separation of homologous pairs of chromosomes (this reduces the total in half)
- second division: separation of sister chromatids of a chromosome.
The rearrangement in meiosis occurs by crossing over/genetic recombination.
This is the exchange of genetic material between homologous pairs of chromosome bringing about a rearrangement and genetic variation
An example of a chromosomal abnormality that arises as a result of defects in this process is the Down Syndrome which is caused by a nondisjunction of the chromosomes 21 pair in a sex cell.
This condition produces offsprings that have some characteristic facial features, short stature etc
