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N76 [4]
3 years ago
12

PLEASE HELP! I NEED THIS ASAP!! I GIVE BRAINLIEST!!

Biology
1 answer:
WINSTONCH [101]3 years ago
6 0

Answer:

a) genetics and heredity: Genetics can be described as the study of genome or DNA of an organism. Heredity refers to the traits which are passed on from the parents to the offsprings. Not all of the genome of an individual is similar to the parents. Hence, genetics refers to the genome of an individual and heredity refers to the traits which pass from the parents to the child.

b) Dominant and recessive trait: A dominant trait is caused due to a dominant allele. A dominant allele is the allele which can mask the effect of the other recessive allele. Hence, a person can be homozygous or heterozygous for the dominant trait. A recessive trait arises due to the recessive allele. A recessive allele is the allele which gets masked by the dominant allele.

Pure and hybrid: A pure offsprings contains the same genetic character for a trait. It is a homozygous offspring. A hybrind offspring contains different alleles or genetic characters and is heterozygous.

Explanation:

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Under which environmental condition would primary succession occur ​
astraxan [27]

Explanation:

Primary succession starts off with the modification of a previously unoccupied area along with increasing variation- this occurs in barren areas devoid of life like sand dunes, and lava flows. Communities in a primary succession include:

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-bacteria and fungi

-mosses and lichen

Further Explanation:

Succession involves small scale changes within a community that occur repeatedly over the life of that community.

Ecological communities are highly dynamic- they gradually evolve. Typically their progression involves:

  • colonizing species exploiting uninhabited areas (Primary succession)
  • becoming a habitable and increasingly complex community
  • there is increased diversity of organisms (Secondary)

The makeup of biological communities is crucial to defining Primary and Secondary succession; eventually, through changes in this makeup, a steady-state or equilibrium is reached called a climax community. While Primary succession starts off with the modification of a previously unoccupied area along with increasing variation; secondary succession begins after major disruption in the community such as fires, storms and flooding.

However, the process of becoming a climax community can be pretty complicated- it is very dependent on other factors like temperature and rainfall. Communities that experience rapid change, frequent major disruptions and even human intervention, are less likely to attain a stable equilibrium and may never become climax communities.

Learn more about ecological succession at brainly.com/question/2456852

#LearnWithBrainly

8 0
3 years ago
The embryonic stage is the first phase of the prenatal stage, lasting only two weeks after conception.
Advocard [28]

this statement is False. prenatal development stages in order go from the germinal stage, embryonic stage, and the fetal stage, hope this helps :)

7 0
3 years ago
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Many of the phenotypes of DiGeorge syndrome have been traced back to one of the genes that is in the deleted region, TBX1. Some
ohaa [14]

Answer:

D. A silent variant near the 5' end of the TBX1 gene.

Explanation:

TBX1 gene is wild type human being. It gives instructions for making protein called T-box 1. It plays an important role in tissue formation and organs during embryonic development.

3 0
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How does a genetic mutation occur?
hoa [83]

Answer:

A mutation is a change that occurs in our DNA sequence, either due to mistakes when the DNA is copied or as the result of environmental factors such as UV light and cigarette smoke. Mutations can occur during DNA replication if errors are made and not corrected in time.

Explanation:

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Which properties are used to identify minerals? Select 3 choices.
worty [1.4K]

Used to identify properties are

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