Answer:
false
Explanation:
Some people have freckles, and some people do not have freckles. If a child has freckles, at least one parent has freckles.
Freckles are determined by two genes instead of by one. If Mendel had crossed a true breeding dominant plant with a true breeding recessive plant, in which of the three generations is the recessive trait visible.
Freckles are not determined by DNA. There are two alleles for freckles. There is no dominant allele for freckles. Freckles are determined by two genes instead of by one. F1 generation .P generation, F1 generation and F2 generation, P generation and F2 generation.
Primase is an enzyme that synthesizes short RNA sequences called primers. These primers serve as a starting point for DNA synthesis during replication as the DNA polymerases cannot begin the synthesis of the new strand, they only extend it after primase begins it and primase produces RNA molecules, the enzyme can be said to be a type of RNA polymerase.
Therefore, Some people have freckles, and some people do not have freckles. If a child has freckles, at least one parent has freckles.
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Part 1.
The correct answer is option 2.There are two alleles for freckles.
According to the condition of the occurrence of the freckles, it can be concluded that the freckle is an autosomal dominant condition. The freckle can only be inherited, if there is at least one dominant allele in any of the parent. If both the individuals are heterozygous for the trait, they can produce an offspring without freckle by passing down the recessive alleles to the progeny. So, the freckles are controlled by two alleles, which can be either dominant or recessive.
Part 2.
The correct answer is option 4. P generation and F2 generation.
In this case, it is given that true bred homozygous recessive plant is crossed with true bred homozygous dominant plant. The true bred recessive plant always shows the recessive phenotype. When true bred homozygous recessive plant is crossed with true bred homozygous dominant plant, the F1 generation would produce all the heterozygous individual and exhibit dominant phenotype. When the F1 generation is self crossed, it result in 75% dominant phenotype and 25% recessive phenotype.
A possible cross for this case is given in the picture.
The correct answer is option A
A biologist is a person who has the knowledge in the field of biology. Biology is a multidisciplinary subject that includes ecology, zoology, botany, environmental studies et cetera.
The effect of exercise on the heart rate of horses comes under the category of zoology.
In this subject we study about the effect of various components present in the surrounding on the health of animals.
Impulse transmission would be slower in the axon with myelin.
An "all" response would occur in the axon with myelin.
A "no" response would occur in the axon with myelin.
Impulse transmission would be faster in the axon with myelin.
A protective layer or sheath called myelin develops around nerves, including those in the brain and spinal cord. It is composed of fatty and protein components.
Electrical impulses may move swiftly and effectively along nerve cells thanks to the myelin coating. These impulses decelerate down if myelin is compromised. Multiple sclerosis and other disorders may result from this.
Each nerve cell has a myelin sheath, which is a type of sheath (neurons). The primary "body" or axon of a neuron is covered in a protective covering made of protein and fat (lipids).
Therefore, Impulse transmission would be faster in the axon with myelin.
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Answer:
(A) Impulse transmission would be faster in the axon with myelin.
Explanation:
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B. Conducts heat readily
C. Reacts with bases to produce salts
D. Becomes negative when combined with other elements