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alexgriva [62]
2 years ago
13

If the dominant alleles for stem color and fasciation are commonly located on the same chromosome, how could the dominant allele

for one of these characteristics and the recessive allele for the other be on the same chromosome?
Biology
1 answer:
VikaD [51]2 years ago
3 0

Answer:

Chromosome crossing over in prophase 1 where DNA segments are moved between the homologous pair.

Explanation:

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¿Se pueden transferir mutaciones en todo tipo de células a la generación futura?
Arturiano [62]

Answer:

No

Explanation:

No todas las mutaciones conducen a la evolución. Solo las mutaciones hereditarias, que ocurren en los óvulos o los espermatozoides, pueden transmitirse a las generaciones futuras y contribuir potencialmente a la evolución.

7 0
2 years ago
Read 2 more answers
Which of the following is a plant adaptation to living in a cold climate?
NemiM [27]

Answer:

b. Vernalization

Explanation:

Vernalization is a phenomenon in which plants require low temperature for the flowering. There is either qualitatively or quantitatively dependent on exposure to very low temperature. This process is known as vernalization. Vernalization defines especially to the promotion of flowering by a period of  low climate. For example; Vernalisation occurs in biennial plants. Biennials are monocarpic plants which normally flower and may die in the second season. Some common examples of biennials are carrots, Sugarbeet, cabbages, etc.

6 0
3 years ago
List ten sources of water polution (LIST FORM, NOT LIKE AN ESSAY PLEASE!)
nadezda [96]

Answer:

  1. Industrial waste (toxic chemicals)
  2. Sewage (contains harmful bacteria)
  3. Oil spills from boats
  4. Agriculture (pesticides and animal waste)
  5. Radioactive waste from nuclear powerplants
  6. Dumping trash (trash such as plastics, glass, styrofoam, etc.)
  7. Acid rain (caused by the burning of fossil fuels)
  8. Mining activities (particles from mining)
  9. Soil erosion due to deforestation
  10. Leakage from landfills
6 0
3 years ago
In response to seasonal changes in temperature, many organisms must alter the composition of their plasma membranes to maintain
katrin [286]

Answer:

The correct answer is D

Explanation:

The cell membrane is essentially composed of the following:

  • phospholipids
  • cholesterol
  • proteins

The phospholipid consists of a <em>hydrophilic </em>phosphate 'head' and the tail is the <em>hydrophobic</em> fatty acid chain.When cellular membranes form,phospholipids collect into two layers in light of these hydrophilic and hydrophobic properties. The phosphate heads in each layer face the fluid or watery condition on either side, and the tails conceal away from the water between the layers of heads, since they are hydrophobic.

There are 3 main factors that greatly influence the fluidity of the plasma membrane:

  • temperature
  • cholesterol
  • saturated and unsaturated fatty acids

8 0
2 years ago
A transcription unit that is 8,000 nucleotides long may use 1,200 nucleotides to make a protein consisting of approximately 400
bearhunter [10]

Answer:

A) many noncoding stretches of nucleotides are present in mRNA.

Explanation:

A transcription unit in eukaryotes includes the region that code for mRNA extending from the 5' cap site to the 3' poly-A site. It also includes the controlling regions. The mRNA formed by transcription also has some non-coding intervening sequences. These are called introns. Introns are removed from the primary transcripts by the process of splicing that occurs after transcription.

Therefore, a transcription unit that is 8,000 nucleotides long may use only 1,200 nucleotides to code for a protein having 400 amino acids since the rest of the nucleotides are part of introns and are removed from mRNA after transcription.

5 0
2 years ago
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