Answer:
- One spermatogonium produces 4 spermatids FALSE. One primary spermatocyte produces 4 spermatids.
Explanation:
Germ cells are diploid reproductive cells in charge of gamete production. Germ cells divide by mitosis and meiosis. Through mitosis, they originate more sexual cells, but through meiosis, they produce gametes -sperm and egg cells-. This process is known as gametogenesis.
Gametes´destiny is to merge during fecundation, and a new diploid cell called zygote emerges through fertilization. The zygote is a complete cell and suffers successive mitosis to form the new organism.
Spermatogenesis is the process of production and maturation of sperm cells. Spermatogonia are the masculine diploid germ cells, carrying 46 chromosomes. These germ cells suffer mitosis to reproduce. Some of them stay as spermatogonia, and some others become primary spermatocytes, which are in charge of gamete production. Primary spermatocytes are also diploid cells, meaning that they still carry 46 chromosomes.
Each primary spermatocyte replicates its genetic material and then goes through meiosis I to produce two daughter haploid cells called secondary spermatocytes, each of them carrying 23 chromosomes. Each secondary spermatocyte will produce two other haploid daughter cells by meiosis II.
The total result from the two cellular divisions of each primary spermatocyte is four haploid daughter cells called spermatids.
During spermiogenesis, spermatids mature into spermatozoa or sperm cells. Each sperm cell characterizes by being composed of a head, midpiece, and tail.
- DNA replicates once, but cells divide twice TRUE
- The products are spermatozoa that each have a head, midpiece, and tail TRUE
- Spermatids containing 23 chromosomes (1n) are produced TRUE
- One spermatogonium produces 4 spermatids FALSE. One primary spermatocyte produces 4 spermatids.
- Genetically diverse spermatids are created TRUE
Answer:
<u>The Transcription mRNA</u>
5'- AUG-CCC-GUU-UGG-AGA-UCG-GGU-UAC-AGC-UAG-3'
<u>The translation product</u>
5' Met-Pro-Val-Trp-Arg-Ser-Gly-Tyr-Ser-3'
Explanation:
Transcription is a process which transcripts the DNA to a molecule called mRNA or messenger RNA which contains code for the synthesis of amino acids.
The RNA nucleotide base pairs are added in the same way as in the DNA that is guanine will bind cytosine but adenine will bind uracil instead of thymine.
Since the start codon is AUG which codes for methionine and stop codons could be UAG, UAA or UGA which do not code for the amino acids during translation.
In the given question,
Looking for the start codon which is AUG in the template strand is found and the transcript mRNA thus will be coded as
<u>Template strand</u>
3' AACTT-TACGGGCAAACCTCTAGCCCAATGTCGATCAGTTTC 5'
<u>The Transcription mRNA</u>
5'- AUG-CCC-GUU-UGG-AGA-UCG-GGU-UAC-AGC-UAG-3'
<u>The translation product</u>
5' Met-Pro-Val-Trp-Arg-Ser-Gly-Tyr-Ser-3'
Answer:
A river forms from water moving from a higher elevation to a lower elevation, all due to gravity. Flowing water finds its way down a slope initially as small creeks. As small creeks flow downhill they shape larger streams and rivers. Rivers eventually end up flowing into the oceans with much more speed than was originally there.
Hope it helps and I did it correctly and used that words I needed to.
Due to the wolves being the natural predator of some species, like elk, the population would likely be impacted after the reintroduction of the wolves. These wolves would hunt their prey, causing a drop in population.
Answer:
glucose
Explanation:
glucose is the starting material or precursor for both aerobic and anaerobic respiration. Only the products and pathways are different.
