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Oliga [24]
3 years ago
5

What is genomic imprinting?

Biology
1 answer:
puteri [66]3 years ago
7 0

Answer:

genomic imprinting, process wherein a gene is differentially expressed depending on whether it has been inherited from the mother or from the father. Such “parent-of-origin” effects are known to occur only in sexually reproducing placental mammals.

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In early pregnancy, what hormone stimulates growth of the corpus luteum?.
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Human chorionic gonadotropin (HCG) stimulates the corpus luteum to grow and secrete estrogen and progesterone.

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If a true-breeding blue-flowered plant was crossed with a true-breeding white-flowered plant, what phenotypic ratio would we obs
Westkost [7]

Answer:

B. 100 percent white

Explanation:

According to Mendel's law of dominance, the dominant allele of a gene masks the expression of the recessive allele in a heterozygous state. Therefore, when two pure breeding plants that differ with respect to one genetic trait are crossed, the progeny expresses only the dominant phenotype. Here, one allele should be completely dominant over the other. The allele for the white flowers is completely dominant over the allele for the blue flowers.

Let' assume that the allele "W" imparts white color to the flowers while the allele "w" gives blue color. When a true-breeding blue-flowered plant (ww) is crossed with a true-breeding white-flowered plant (WW), the progeny would be heterozygous for the dominant allele "W" and would exhibit "white color of flowers" (the dominant trait).

WW (white-flowered plant) x ww (blue-flowered plant) = Ww (white-flowered plant)

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3 years ago
How long will r136a1 live? ​
loris [4]

A star’s life expectancy depends on its mass. Generally, the more massive the star, the faster it burns up its fuel supply, and the shorter its life. The most massive stars can burn out and explode in a supernova after only a few million years of fusion. A star with a mass like the Sun, on the other hand, can continue fusing hydrogen for about 10 billion years. And if the star is very small, with a mass only a tenth that of the Sun, it can keep fusing hydrogen for up to a trillion years, longer than the current age of the universe.

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The synaptic knob releases acetylcholine into the synaptic cleft, which is received by receptors on the motor end plate. which s
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It portrays the neuromuscular junction of a skeletal muscle. 
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During long periods of exercise the supply of glycogen in muscle cells is used up after excercise the body quickly replaces the
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