Answer:
The correct genotype of the two pure lines and the F1 is:
A⁺A⁺B⁰B⁰C⁰C⁰D⁰D⁰ and A⁰A⁰B⁺B⁺C⁺C⁺D⁺D⁺
The number of additive alleles on each genotype are two and six respectively.
Explanation:
Locus( plural form . loci) are fixed point on a chromosome in which genes are located. These genes are specific genetic material or genotype.
Now;
If we decide to designate the allele of the four loci into either additive (⁺) or non-additive(⁰); we have the following :
Let's the allele of the four loci to be
A⁺/A⁰, B⁺/B⁰, C⁺/C⁰ and D⁺/D⁰
However, from the diagram below; we deduce that the correct genotype for the two pure lines and the F1 is as follows:
A⁺A⁺B⁰B⁰C⁰C⁰D⁰D⁰ and A⁰A⁰B⁺B⁺C⁺C⁺D⁺D⁺ and the number of additive alleles on each genotype are two and six respectively.
The cross between both F1 traits will yield an heterozygous individual for the offspring. i.e A⁺A⁰B⁺B⁰C⁺C⁰D⁺D⁰ with only four additive allele
Answer:
The rain, wind, and possibly hail where's down the dome rock causing chucks of the dome fall off.
Explanation: The rain softens the rock while the wind blow debris on the dome and (possibly) hail knocks the chucks of rock off the dome. (If there is no hail then eventually the rain and wind will make the rock fall off the dome)
<h2>Hope this helps!</h2>
The answer is <span>Chemical digestion involves the breaking down of food with enzymes; </span><span>mechanical digestion is breaking down food by chewing and tearing with teeth.
Mechanical digestion means breaking down food mechanically. By chewing and tearing with teeth, food breaks down into smaller parts and no enzymes are used. Chemical digestion means breaking down food in a chemical manner. This is achieved by secreting enzymes, which break down chemical bond between food molecules.</span>
6. Algae are biotic factors. They are living organisms which have the capability to produce food through photosynthesis. It acts as a producer. Also they appear on the wall of tank through reproduction , which is characteristics of living being.
7. Snail is also a biotic factor like algae. They are classified as consumers. They feed on algae to survive with in the tank. They move while feeding on algae and movement is an important trait of living being.
8. Light Bulb is an abiotic factor. Though it is an essential requirement for fish to survive but since it is not a living being , it is considered as abiotic. While fish on the other hand is a biotic factor as it possess life in it.
Explanation:
Gregor Mendel knew how to keep things simple. In Mendel's work on pea plants, each gene came in just two different versions, or alleles, and these alleles had a nice, clear-cut dominance relationship (with the dominant allele fully overriding the recessive allele to determine the plant's appearance
