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2 years ago

What are two things involved in a nerve impulse?

Biology

2 answers:

Artist 52 [7]2 years ago

7 0

Acceleration of impulse
deceleration of impulse

V125BC [204]2 years ago

4 0

1. Acceleration of impulse
2. Deceleration of impulse

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What is the responsibility of circulatory system

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itis responsible for the circulation as wel as purification of blood in the human body

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WILL GIVE BRAINLIEST

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2 years ago

The central nervous system contains _____, which is the center of the nervous system, and _____, which coordinates simple reflex

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The central nervous system contains the brain, which is the center of the nervous system, and the spinal cord, which coordinates simple reflexes.

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The principle of dominance is a inheritance pattern. It states traits that are

zvonat [6]

Answer:

This question is incomplete, it is asking to fill in the missing gaps as follows:

The principle of dominance is a ______ inheritance pattern.

It’s states traits that are ______ mask the traits that are______

The answers to the missing gaps are: MENDELIAN, DOMINANT, RECESSIVE

Explanation:

Gregor Mendel proposed the principles that govern inheritance. These principles are called MENDELIAN inheritance pattern because they align with or follow the principles of Mendel. One of these principles by Mendel is the LAW OF DOMINANCE.

Mendel has previously stated that there are two alleles for each gene. Each contrasting allele encodes a different phenotype. However, the law of dominance states that one of these two alleles called DOMINANT allele has the ability to mask the phenotypic expression of the other allele called RECESSIVE allele. In other words, a dominant trait will mask the recessive trait.

For example, in a gene Tt, allele 'T' for tallness is dominant and hence, will mask the phenotypic expression of allele 't' for shortness. This means that the tall trait (dominant) will mask the short trait (recessive) as explained by Mendel's law of dominance.

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2 years ago

A true-breeding plant with inflated pods and yellow pods is crossed with a plant that has constricted and yellow pods. Draw a

xenn [34]

Answer: Sysy × Sysy i.e. all are genotypically heterozygous, inflated, and yellow

Explanation:

Punnett squares are a diagrammatic means of determining traits of hybrid offspring produced via crosses in genetic breeding. The parental genotypes and phenotypes are usually known, and these typically follow standard Mendelian ratios and inheritance.

Mendelian genetics focus on trait inheritance, or heritability. These traits are packaged out into its own gamete, inherited by themselves and often show dominance, where one's effect may mask those of another trait.

These are called the Law of Segregation, Independent assortment and Dominance respectively.

For this cross...

Parent generation or P generation:

gametes: Y → pod color green dominant (Y), yellow recessive (y)

S→ pod size; inflated dominant (S), constricted recessive (c)

Assumptions...

True breeding plants are homozygous, with identical sets of alleles
The other parent is heterozygous, as it was not said to breed true

P generation: SySy × sysy

yellow, inflated × yellow, constricted

F1 generation: Sysy × Sysy ...(from punnet square)

phenotype: yellow, inflated × yellow, inflated

∴ all are genotypically heterozygous, inflated, and yellow

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2 years ago