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Yakvenalex [24]
4 years ago
9

Which of the following statements correctly describes the effect a nonsense mutation would have on a gene?a) It changes an amino

acid in the encoded protein.b) It alters the reading frame of the mRNA.c) It introduces a premature stop codon into the mRNA.d) It has no effect on the amino acid sequence of the encoded protein.
Biology
1 answer:
TEA [102]4 years ago
3 0

Answer:

c) It introduces a premature stop codon into the mRNA

Explanation:

Nonsense mutation is a type of point mutation (single nucleotide base is changed) which leads to premature stop codon. Stop codons are also called nonsense codons and that is way this type of mutation is called nonsense mutation. As a consequence, synthesized protein is incomplete and shorter than it should be (truncated protein), usually nonfunctional.

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Define Sicon????.......​
mafiozo [28]

Here is your Answer

<u>A</u><u> </u><u>descendant or heir, especially of a wealthy or prominent family: scion of the ruling dynasty. 2. Botany A detached shoot or bud from a plant that is joined to a rootstock in grafting. [Middle English, from Old French cion, possibly of Germanic origin.]</u>

Explanation:

I think its helpful to you

7 0
3 years ago
Describe how you think a child’s DNA is different from his or her mother’s DNA and father’s DNA.
monitta

Answer:

  • For starters, you inherit two copies of each chromosome—one copy from your mom and one copy from your dad. <u>This means that your genome (all of your DNA) is already different because it contains chromosomes from both of your parents</u>.

  • So yes, it is definitely possible for two siblings to get pretty different ancestry results from a DNA test. Even when they share the same parents. DNA isn't passed down from generation to generation in a single block. Not every child gets the same <u>50</u>% of mom's DNA and <u>50</u>% of dad's DNA.

  • DNA is passed down to the next generation in big chunks called chromosomes. Every generation, each parent passes half their chromosomes to their child. If nothing happened to the chromosomes between generations, then there would be around <u>a 1 in 8 chance</u> that you would get no DNA from a great, great, great grandparent.

  • Genetically, you actually carry more of your mother's genes than your father's. That's because of little organelles that live within your cells, the mitochondria, which you only receive from your <u>mother.19DNA</u> is the material that carries all the information about how a living thing will look and function. For instance, DNA in humans determines such things as what color the eyes are and how the lungs work. Each piece of information is carried on a different section of the DNA. These sections are called genes.

  • Each son receives DNA for his Y chromosome from his father. This DNA is not mixed with that of the mother, and it is identical to that of the father, unless a mutation occurs. It has been estimated that a mutation occurs about once every <u>500</u> generations, or every <u>15,000</u> years, give or take a few millennia.

  • DNA Paternity tests can falsely exclude someone who is truly the child's biological father for a variety of reasons. One major reason is simple human error.

  • While women do inherit <u>50</u>% of their DNA from each parent, men inherit about <u>51</u>% from their mother and only <u>49</u>% from their father.

<h2>1986</h2>
  • In <u>1986</u> was when DNA was first used in a criminal investigation by Dr. Jeffreys. <u>1986</u>. The investigation used genetic fingerprinting in a case of two rapes and murders that had happened in <u>1983 and 1986.</u>
3 0
3 years ago
The two strands of a DNA molecule are said to be antiparallel.what does this mean?
kaheart [24]
The DNA molecule is  composed of two strands  with the help of hydrogen bonds which is doubl helix <span> At each end of the double helix, one strand is 5' and the other is 3'.the two strands are anti parallel so the correct option is
</span> They are oriented in opposite directions
6 0
3 years ago
Read 2 more answers
A frog with a mass of 0.29kg hops up in the air. At the highest point in the hop, the frog has a gravitational potential energy
PtichkaEL [24]

Answer:

0.27m

Explanation:

To get the energy

Potential energy= Mgh

M is Mass

G is acceleration due to gravity

H is height..

M= 0.29kg, h= ?

P=0.759. g=9.8m/s

Therefore,

0.759=0.29×9.8×h

H= 0.759÷2.842

H= 0.27m

8 0
3 years ago
Critically discuss the extent to which the international community put pressure on the national party government to reform apart
mario62 [17]
Apartheid was the system of legislation that separated white from non-white, and non-white from each other using their tribal lines. 

This was to ensure that the political power the groups have will not be strong enough to overpower the National Party.

International attention was gained when Nelson Mandela, a resistance leader and founder of Umkhonto we Sizwe (“Spear of the Nation”), was imprisoned. Thus, international pressure began to stop apartheid system.

<span>1973 - United Nations General Assembly had denounced apartheid
1976 - </span><span>UN Security Council voted to impose a mandatory embargo on the sale of arms to South Africa
</span><span>1985 - the United Kingdom and United States imposed economic sanctions on the country (Africa).
</span>1989 - <span>F.W. de Klerk, with the support of Nelson Mandela and his supporters, step up as President.</span>
4 0
4 years ago
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