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Nuetrik [128]
2 years ago
11

Novel combinations of genes can arise from _______.

Biology
1 answer:
sertanlavr [38]2 years ago
7 0

Answer:

reciprocal exchange of dna

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Compare and contrast properties of sister chromatids and homologous chromosomes.
lubasha [3.4K]

Answer:

Explanation:

Sister chromatids are regarded as replicated chromosomes. Sister chromatids are two identical copies of chromosomes held at the centromere that are formed as a result of replication. They are identical in the sense that they contain same alleles/gene sequence of the same genes.

Homologous chromosomes, on the other hand, are similar (in length, centromere position) but non-identical chromosomes. Homologous are non-identical in the sense that they may contain different alleles of a gene and are received from each parent. homologous chromosome contain four chromatids; two of which are sister chromatids and non-sister to the other two.

Both undergo meiosis where homologous chromosomes separate in meiosis I while sister chromatids separate in meiosis II but only sister chromatids undergo mitosis.

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2 years ago
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Two soccer balls are rolling across a field. Ball 1 has a mass of 1.0 kg, and ball 2 has a mass of 1.5 kg. Ball 1 is traveling a
jonny [76]
I think it's d:) hope that helps
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2 years ago
NEED HELP ASAP WILL GIVE BRAINILIEST THANK YOU
Grace [21]

TCTCG and AGAGC are the perfect pair.

Option A

<h3><u>Explanation:</u></h3>

DNA is the genetic molecule of a living cell. The DNA stores genetic information of the species inside itself by means of particular pattern or sequence of nitrogen bases called as gene. The gene is comprised of the particular sequence of nitrogenous bases which are four in number - adenine, guanine, thymine and cytosine.

The nitrogen bases are present in both the strands of DNA and they have complementary relationship between them. The adenine forms hydrogen bonds with thymine and guanine pairs with cytosine.

Here the sequence of one strand is given as TCTCG. So according to the complementary pairing process, the opposite strand must have the sequence of AGAGC to maintain the structure.

4 0
3 years ago
Match the different roles of people involved in the buying center with their responsibilities.
aliina [53]

Answer:

Initiators  - identify the requirement for a product within the company

Influencers  - provide specifications about the technology needed by the company

Buyers - handle the process of choosing the vendor and negotiating the price

Explanation:

The buying centre of an organisation consists of 7 different member namely Initiators, Users, Buyers, Influencers, Deciders,  Approvers,  Gate Keepers.

  • Initiators  are the person who are first to suggests or initiates of the idea of buying the particular service or product.
  • Influencer are the whose views or idea influence the decision making process. These influencers could be  qualified engineers, technical personnel, consultants.
  • Buyers are the persons who takes care of the the person who handles the paper work of the actual purchase.These buyers plays a vital role in choosing  vendors. Sometimes they also helps in shaping the product specifications.
4 0
3 years ago
Which of the following is not a direct consequence of groundwater use? a. reduced water storage b. increased surface water level
cupoosta [38]
The answer is A is you agree no problem im here to help if you disagree its ok i tried my best to help just saying
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