<h3><u>Answer and explanation;</u></h3>
- This can be done by<u> DNA sequencing which is the process of determining the accurate order of nucleotides within a DNA molecule</u>.
- By doing a DNA sequencing for the two sequences of DNA from the two species it will help compare the number of random mutations which have occurred in a molecular clock in the two species - that is, seeing how different the sequences are.
- This will make it possible to infer how long ago the species diverged.
Species A: GTTGAGCTAGTATGGACC
Species B: GATAAGCTAGTAAGGTCA
These species differ in 5 nucleotides.
This number should be multiplied by the rate of mutations; that is;
5 × 15 million years =75 million years.
Answer: <u>IONIC BONDING- </u>When a metallic atom reacts with a non metallic atom, then it forms an ionic bond. For example, Sodium (Na) is a metal that reacts with a non-metal Chlorine (Cl) forming Sodium-chloride (NaCl).
<u>COVALENT BONDING-</u> It is a chemical bonding that occurs when any two non-metallic atoms reacts with one another, by sharing one pair of electrons. For example, Carbon Dioxide (CO₂).
Answer:
They have a never ending relationship.(It ends on the death of the living being).
Explanation:
How they are inter-related:
The smallest structural and operational unit in the human body are cells.
A TISSUE forms when a number of specialized cells work together to complete a specific task.
The ORGANS are made up of tissues that work together to provide a specific purpose in the body.
Now, an ORGAN SYSTEM is created when a collection of organs in the human body carry out the life process.
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Answer:
Independent assortment
Explanation:
The type of inheritance displayed by the offspring is a simple <u>independent assortment inheritance according to Mendelian law.</u>
The result of crossing BbGg and bbgg is as follows (see the attached image)
<em>4 BbGg smooth and gray</em>
<em>4 Bbgg smooth and white</em>
<em>4 bbGg bumpy and gray</em>
<em>4 bbgg bumpy and white</em>
The phenotype ratio from the cross is 1:1:1:1 as far as the independent assortment is concerned.
Now, looking at the population of each phenotype from the cross
Smooth, gray 119
Smooth, white 123
Bumpy, gray 121
Bumpy, white 117
119:123:121:117 is approximately equal to 1:1:1:1.
Hence, the cross agrees with Mendel's law of independent assortment of genes.