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emmainna [20.7K]
4 years ago
13

The newborn's brain is about 25 percent of its adult weight by birth; by the second birthday, the brain is about ________ percen

t of its adult weight.
Biology
1 answer:
Alina [70]4 years ago
7 0
<span>50 percent. Newborn has very low listening ability and learning as brain develops the child will learn new things and his brain starts to grow big .Brain will adapt the language,color ,light,people faces and then child will learn fast</span>
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Forward primer: 5'-AGTCTACTCGTAACCGGTTACC-3' Reverse primer: 5'-TAAGGCATCATGGTAACCGGTT-3' The two primers above have the melting
Jobisdone [24]

Answer:

B

Explanation:

The 3'-end of the reverse primer (3'-TTGGCCAATGG---5') is complementary to the forward primer (5'---AACCGGTTACC-3') and thus reduces the ability of the primers to bind to the targeted DNA sequence. There is possibility of hairpin loop formation or primer dimmers formation

3 0
3 years ago
If you have just eaten, your body secretes ______ to uptake glucose; if you have not eaten all day, your body secretes ______ to
pav-90 [236]
If you have just eaten, your body will secrete insulin. Insulin is the hormone that allows glucose to enter cells. That way they will have the proper energy for their normal functions.
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6 0
3 years ago
All the cells in your body need ___________ to survive
Lesechka [4]

Answer:

Oxygen or Minerals or Sugars (Oxygen is the most relevant one)

Explanation:

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8 0
3 years ago
The fertilization of ovules from Plant Q by pollen from Plant R results in the production of seeds. What percent of the genes in
blagie [28]

Answer:

The correct answer is - option A. 0%

Explanation:

The zygote formation or fertilization in flowering plants occurs by the fusion of pollen of one plant with the ovum of another plant of the same species normally. This process includes the exchange of an equal amount of the genetic contribution from both plants.

The egg cell of the mother is responsible for the mitochondria and chloroplast of the progeny so the percentage of chloroplast genes provided via Plant R is 0% as ovum and egg cell comes from only plant Q.

percentage of chloroplast gene inherited from R plant is a)0%

3 0
3 years ago
Which statement best describes the relationship between an allele's frequency and its dominance? A) Frequency and dominance are
marshall27 [118]

Answer:

D) Frequency results from environmental stresses, not dominance.

Explanation:

The allele frequency refers to the amount of frequency of a particular allele in a small population whereas the dominance and recessive are the measure of the effects of the allele on the population which decides the trait of an organism.

The frequency and dominance cannot be correlated with each other as the frequency of the allele in a population is the result of the environmental stress which are random and by chances, whereas the effect of dominance is not random but is the result of the favoured trait for survival.

Thus, Option-D is correct.

6 0
3 years ago
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