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BabaBlast [244]
3 years ago
6

Which body region are part of the cephalic region?

Biology
1 answer:
ivann1987 [24]3 years ago
3 0

The cephalic region (head) or cranial region (skull) is at the top of the body and visible from the front and rear. The cervical region (neck) starts below the head, ends at the thorax, and is visible from the front and rear from below the head to the shoulders.

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Suppose you have one plant with the genotype TTPpYy, and another plant that is recessive for all three traits. If you were to cr
musickatia [10]

Answer:

16/64 = 1/4

Explanation:

This is a typical trihybrid cross involving three genes T, P and Y. A plant with genotype TTPpYy is crossed with a plant recessive for all traits (ttppyy).

According to Mendel's law of independent assortment, each allele for each gene will get sorted into the following 8 gametes with only 4 different: TPY, TPy, TpY, Tpy, TPY, TPy, TpY and Tpy.

The recessive parent, ttppyy will produce tpy, tpy, tpy, tpy, tpy, tpy, tpy and tpy.

Hence, using a punnet square, 64 offsprings will be produced with only 16 of them heterozygous dominant for the three traits with genotype (TtPpYy). Hence, proportion is 16/64 equivalent to 1/4.

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3 years ago
How are stromatolite fossils evidence of earths early life?
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Answer:

Early cyanobacteria in stromatolites are thought to be responsible for increasing the amount of oxygen in the primeval Earth's atmosphere through their continuing photosynthesis. They were the first known organisms to photosynthesize and produce free oxygen.

Hope this helps!!!

4 0
2 years ago
How does the fact that telomeres are long stretches of repeated nucleotides lessen the impact that somatic cells don’t have te
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Telomerase activity is controlled during development and is extremely low in somatic (body) cells, virtually undetectable. These somatic cells age because they do not frequently use telomerase.

  • Telomeres are repetitive sections at the very ends of chromosomes that are present in a variety of eukaryotic species, including humans and unicellular protists.
  • Each round of DNA replication wears down a little portion of the telomeres, which serve as caps to safeguard the interior chromosomal regions.
  • Most somatic (body) cells do not typically have telomerase activity, but certain adult stem cells and germ cells—the cells that produce sperm and eggs—have.
  • Adult germ cells, tumor cells, and fetal tissues all contain telomerase. Telomerase activity is controlled during development and is extremely low in somatic (body) cells, virtually undetectable. These somatic cells age because they do not frequently use telomerase.

learn more about telomerase here: brainly.com/question/14213408

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4 0
2 years ago
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Gnoma [55]

Answer: 99% sure its 50

Explanation:

5 0
2 years ago
Read 2 more answers
Please answer all i need help quick
svet-max [94.6K]

Answer:

1. B

2. B

3. A

4. B

Explanation:

1. Species is smaller than kingdom, and domain isn't a group

2. Its kinda obvious

3. Not too sure on this one, but i think a is right

4. Pro means 'before nucleus', therefore it has no nucleus

3 0
3 years ago
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