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bixtya [17]
3 years ago
14

Please help I will mark brainly ‘

Biology
2 answers:
Black_prince [1.1K]3 years ago
8 0
It’s because they are polar. Nonpolar molecules move through the membrane easily, while polar molecules, such as water, move against the concentration gradient and thus move slower.
Contact [7]3 years ago
7 0
They are semi-permeable because they can diffuse and pass through the plasma membrane easily.
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Three genes (A, B, and C) at three loci are being mapped in a particular species. Each gene has two alleles, one of which result
Mashcka [7]

Answer:

The correct answer is:

D. Gene A is assorting independently of genes B and C, which are linked.

Explanation:

According to the text it is possible to deduce that the first allele of gene A appears with allele of gene B or C half of times. On the other side alleles of genes B or C appear at the same time in 14.4% of the cases. This information shows how A is and independent variable and how B and C are related as they appear together as well.

3 0
3 years ago
Pointsss? lol give me sum rnn
AleksandrR [38]
Do you have a question?
6 0
3 years ago
HELPPP!
Vinvika [58]

Answer:

A cell that has duplicated chromosome  cannot be in<u> G1 phase.</u>

Explanation:

  • G1, G2 and S phase are the divisions of the interphase i.e. the resting phase of the cell cycle.
  • A cell cycle has two phases; interphase and M-phase.
  • During interphase the cell grows and in M-phase it divides.
  • G1 is the Gap between the M-phase and the S-phase.
  • G2 is the gap between the S phase and M phase.
  • DNA replication is confined to the S part of interphase.
  • Since G1 phase comes before the S phase , we can say that a cell that has duplicated chromosome cannot be in G1 phase.

7 0
4 years ago
Read 2 more answers
What chemicals are in H20?
bearhunter [10]

Answer:

Hydrogen and part oxygen

Explanation:

Water is composed of these two which makes the symbol H20

6 0
2 years ago
1. Which cells of the pancreas are the endocrine cells? How were you able to differentiate these cells when viewing the slide? D
Arturiano [62]

Answer:

Explanation:

Endocrine cells in the pancreas are referred to as Islets of Langerhan. There are two major types; Beta cell that produce insulin and alpha cells that produce glucagon.

They are identified when viewed under slides based on their colour reactions with histological dyes. Tinctorial techniques that can be used to identify them under microscope includes; Mallory-Heidenhain azan trichrome, chromium hematoxylin and phloxine, aldehyde fuchsin, and silver impregnation methods.

Islets of Langerhan cells make up minority of the cell. Majority of them are for exocrine functions.

8 0
3 years ago
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