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insens350 [35]
3 years ago
13

In addition to their circular chromosome bacteria also have smaller rings of DNA called

Biology
1 answer:
hjlf3 years ago
3 0
Many Bacteria have additional rings of DNA called Plasmids
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Which of the following statements concerning chromosomal distribution is INCORRECT?
kogti [31]

Answer:

C. During meiotic division, the members of the chromosome pairs regroup themselves into the original combinations derived from the individual's mothers and father for separation into haploid gametes.

Explanation:

During meiosis, there is a random segregation of chromosomes. Metaphase-I of meiosis-I includes alignment of homologous pairs of chromosomes at the cell's equator.

During anaphase I, the homologous chromosomes are separated from each other and move towards the opposite poles. This segregation of homologous chromosomes to the opposite poles is a random event and creates unique combinations of maternal and paternal chromosomes at each pole and finally in each gamete.

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3 years ago
What is the function of a pollen tube?
Firlakuza [10]

Answer:

The function of the pollen tube is to lead sperm cells into the ovary.

Explanation:

In angiosperms, the pollen tube is a structure formed when the pollen grain comes into contact with the stigma and germinates, producing a tubal extension that is related to the embryonic sac where the female gametophyte is found.

The function of the pollen tube is to conduct the male gametophyte —which is found in the pollen— to the embryonic sac, in order to come into contact with the oosphere and produce fertilization.

The other options are not correct because the pollen tube:

  • <em>Do </em><u><em>not create more pollen</em></u><em>. </em>
  • <em>Do </em><u><em>not create more male spermatophytes</em></u><em>. </em>
  • <u><em>Does not lead the eggs to the male spermatophytes</em></u><em>.</em>
6 0
2 years ago
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What are the function of the meristem?​
umka2103 [35]

Answer:

The main function of the meristem is to trigger the growth of new cells in young seedlings at the tips of roots and shoots and forming buds.

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2 years ago
What is H5N1? What is the concern about H5N1? What is a super virus?
olchik [2.2K]
Known as the Influenza A virus subtype H5N1, or more commonly known as the Avian Flu/Bird Flu, H5N1 is enzootic (maintained within a population) globally in many bird populations. According to recent word from the World Health Organization, as well as the United Nations Food and Agriculture Organization, H5N1 pathogenicity is gradually continuing to rise in endemic areas. However farmed birds are held in check by vaccination, and thus far there is no evidence of sustained human-to-human transmission of the H5N1 virus. The number of worldwide outbreaks being reported are steadily decreasing.
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3 years ago
What is the purpose of colorful petals?
blondinia [14]

Answer:

The purpose of colorful petals is to attract insects

7 0
3 years ago
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