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9966 [12]
3 years ago
11

How many pair of human chromosomes are present

Biology
1 answer:
sveticcg [70]3 years ago
3 0

Answer:

46

Explanation:

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List the 3 types of cell junctions and state which is the most and least permeable.
Zanzabum
1) occluding junctions
2) anchoring junctions
3) communicating junctions
Occluding junctions do not totally seal the space between cells and the resulting permeability varies greatly.  I would say anchoring junctions are most likely with one of the other 2 junctions being least permeable.
4 0
3 years ago
The trait of medium-sized leaves in iris is determined by the genetic condition PP′. Plants with large leaves are PP, whereas pl
dsp73

Answer:

20 large size leaves plants

40 medium sized leaves plants

20 small sized leaves.

Explanation:

PP = large leaves

P'P' = small leaves

PP' = medium leaves

PP' was crossed with another PP' plant:

PP'   x   PP'

progeny = PP, 2PP', and P'P'

PP = 1/4  x 80 = 20 large size leaves plants

PP' = 1/2 x 80 = 40 medium sized leaves plants

P'P' = 1/4 x 80 = 20 small sized leaves.

<em>Hence the phenotypes would be:</em>

<em>20 large size leaves plants</em>

<em>40 medium sized leaves plants</em>

<em>20 small sized leaves.</em>

6 0
3 years ago
The area of land that is drained by a river system
stiv31 [10]

Answer:

River basin is the area of land that is drained by a river system.

Explanation: River basin is also called drainage basin. River basin consist of one main big stream which collects water from many tributaries present on the left and right of the main stream. Water is collected from high ridge areas into these tributaries due to precipitation over there. These high areas is known as watershed. This main stream flows and drain into a river system.

4 0
3 years ago
Air that resists vertical movement is said to be ________. air that resists vertical movement is said to be ________. anticyclon
Novosadov [1.4K]
Air that resists vertical movement is said to be stable. The vertical movement of air is referred to as convection, while advection involves the horizontal movement of air and heat energy transference, Temperature differences at the Erath's surface occur wherever there are differences in surfaces substances. 
3 0
3 years ago
Human growth hormone is genetically engineered and inserted into human tissue to help simulate growth in people with dwarfism. W
Ede4ka [16]

Answer: Scientists must be concerned about the impacts it causes on normal people due to aging.

Explanation:When a healthy human takes the growth hormone they do not any side effects or symptoms at the early stage. Once they start aging they have joint and muscle pain in legs and arms earlier than other people of their age and also result in diabetes, blood pressure and heart and lung diseases.

The Human growth Hormone can also cause tumors in brain and also indulge in growth  and development of Cancer Cells in people who has cancer or had been diagnosed before.So these are the main side effects that scientists should rectify in Human Growth Hormone.

4 0
3 years ago
Read 2 more answers
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