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dimaraw [331]
3 years ago
11

Who is credited with the discovery of the structure of dna?

Biology
2 answers:
frez [133]3 years ago
8 0
James Watson is credited with the discovery is the stricture of DNA.

he gibe the 3D structure of DNA in 1962 ,
.

★ hope you like it ★

mel-nik [20]3 years ago
3 0

Answer:

if your on usa test prep its (a) watson and crick

Explanation:

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A certain eukaryotic organism has multiple, distinct genes with highly similar sequences that are expressed at different times i
vlabodo [156]

These genes could have arisen by gene duplication.

<h3>What is gene duplication?</h3>

Gene duplication is the process of copying a section of DNA that codes for a gene. A retro transposition event or a recombination mistake are both potential causes of gene duplication. As a result, the duplicate gene coding may experience a significant number of modifications throughout time. This might prevent the gene from functioning or, in other situations, give the creature a benefit.

Gene duplication is a phenomenon that can happen through a variety of ways:

  • Ectopic Recombination: Uneven crossing-over between misaligned homologous chromosomes during meiosis might result in duplications. A duplication at the exchange site and a reciprocal deletion are the results of this recombination.
  • Replication Slippage: Short genomic sequences can be duplicated as a result of the replication error known as replication slippage. DNA polymerase starts copying the DNA during replication, but eventually the polymerase separates from the DNA, causing replication to stall. The replicating strand is incorrectly aligned when the polymerase reattaches to the DNA strand, which accidentally results in several copies of the same portion.
  • Aneuploidy: When a single chromosome's nondisjunction causes an abnormally high number of chromosomes, this condition is known as aneuploidy. Aneuploidy is frequently damaging and frequently causes spontaneous miscarriages in mammals. Some aneuploid people can survive. For instance, human trisomy 21 causes Down syndrome but is not lethal.

Learn more about gene duplication here:

brainly.com/question/14014915

#SPJ4

3 0
2 years ago
In pea plants, flowers are either white or purple: the purple color is produced by pigments called anthocyanins. The production
IceJOKER [234]

Answer:

This is an example of gene translation.

Explanation:

Gene translation refers to the genetic process where a set of genes is used to create amino acids that will be responsible for creating a protein needed to perform some function or characteristic of the organism. In the question above, we can see that anthocyanin, responsible for the pigment of flowers, is created through the work of proteins that are created from gebes C and P. This is an example of gene translation, as it presents the formation of proteins regulated by genes.

8 0
2 years ago
Result of this action potential releases what ion from the terminal cisternae
spin [16.1K]
The  terminal  cisternae  releases  calcium  ion

  
The  terminal  cisternae   act  as   calcium  storage  sites.  The  calcium  ions  stored in  the  terminal  cisternae  are  essential  in  muscle   contraction. The  calcium  release  unit  of  muscle  consists of  terminal  cisternae  of  the  sarcoplasmic  reticulum  and  it  is  adjacent  transverse  or T-  tubule  that  is  the  invaginated  part  of  the  surface  membrane.
7 0
3 years ago
The atomic mass of potassium is 39. if its atomic number is 19, how many neutron are there
NISA [10]
19. The atomic number indicates how many neutrons there are, and the atomic mass tells us how many protons and neutrons are present within the nucleus of an atom.
3 0
3 years ago
What hypothesis did darwin investigate by studying the breeding of pigeons with distinctive traits?
Romashka-Z-Leto [24]
Arwin in 1856 proved that all pigeon breeds do originate from the Rock Dove and through a process of regression you can recreate the Rock Dove, the ancestor of all pigeon breeds. Hopefully that helped
3 0
3 years ago
Read 2 more answers
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