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Kamila [148]
3 years ago
9

Pls help me help me plx​

Biology
2 answers:
mezya [45]3 years ago
6 0

Answer:

21- B

22- A

23- C

Explanation:

Volgvan3 years ago
4 0

Answer:

1. B 2. A 3. C

Explanation:

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Two organisms, AABBCCDDEE and aabbccddee, are mated to produce an F1 that is self-fertilized to produce F2. If the capital lette
Galina-37 [17]

Answer:

a) How many genotypes will occur in F2

--The genotypes would be- AA Aa aa BB Bb bb CC Cc cc DD Dd dd EE Ee ee (15 genotypes)

Reason-

This is because, after crossing the parents, the F1 generation would all be Heterozygous dominant since one parent is homozygous dominant, while the other is homozygous recessive.

b) 25% of all F2 genotypes would be recessive across the 5 loci

Reason-

This is because each loci would produce only a 25% chance for a recessive trait, which would results to a general probability of 25% also.

c) Yes i would change my answer in A and B if the parent cross was- AABBCCDDEE X aaBBccDDEE

d) Yes i would change my answer in A and B if the parent cross was- AABBCCDDEE X aabbccddEE

4 0
3 years ago
9. Most animals make energy available for cell activity by transforming the
Liono4ka [1.6K]

Answer:

neither

Explanation:

because humans are the ones that make energy available for cell activity

3 0
3 years ago
In eukaryotic cells, DNA is packaged with proteins into structures called chromosomes. What advantage do chromosomes provide the
Vadim26 [7]

Answer:

Option C, They allow random distribution of genetic material when a cell divides.

Explanation:

The chromatin are responsible for packaging of DNA molecule into smaller space with in a chromosome. It not only package it but also protect it from. Packaging allows for easier division of cells during mitosis and meiosis and hence prevent any kind of damage to the DNA.  

Chromosomes make recombination and random segregation of genetic material to form new cells.  Each new cell gets equal number of chromosomes

Hence, option C is correction

4 0
3 years ago
The pH of a solution containing 0.1 mM H+ is _______ ( 1mM = 10-3M)
Taya2010 [7]

Answer:

The pH of a solution containing 0.1 mM H+ is 4

Explanation:

The pH of any solution is given by the following mathematical equation -

pH = -log[H_{+}]\\----------- Equation (A)

Where,

H_{+} = the concentration of hydrogen ion in the solution.

Given

H_{+}

= 0.1mM\\=0.1 * 10^{-3}\\= 10^{-4}\\

Substituting the given value in equation (A) , we get -

pH = -log[10^{-4}]

= -(-4)\\= 4

Hence, The pH of a solution containing 0.1 mM H+ is 4

8 0
3 years ago
What happens right before RNA polymerase begins to work?
Wewaii [24]
C. mRNA detaches and moves to the ribosomes.
3 0
3 years ago
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