Answer:
1. 128
2. 16,384
Explanation:
Imagine there were two pairs of chromosomes:
A paired with B
C paired with D
A gamete could have the following combinations:
A + C
A + D
B + C
B + D
Therefore, with two pairs of chromosomes, there are 4 (2²) possibilities
With seven pairs of chromosomes, there are (2⁷) possibilities. 2⁷ = 128
For a zygote produced by two barley parents, there are two gametes fused. So we must multiply the number of combinations for each gamete. Therefore, number of possible genetic combinations is 128 x 128 = 16,384
There must be a change in the chemical composition of the substance and the change is highly irreversible
RNA viruses take control of a cellular enzyme to design a replication compartment on the cell's membrane filled with PI4P lipids. Those copies then can go on to infect other cells.
The answer would be D.
Large old-growth dominant forest trees, such as the redwoods, are part of a climax community (<span>final and permanent stage of vegetation)</span>. Such trees develop in a biome. These trees are also refers to a<span>n </span>old-growth forest<span> — also termed primary </span>forest<span>, virgin </span>forest<span>, primeval </span>forest<span>, late seral </span>forest<span>, </span>
