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Lady bird [3.3K]
3 years ago
14

Which of the following are probably sources of error in a scientific experiment

Biology
1 answer:
sukhopar [10]3 years ago
8 0

Answer:

where are the answer choices to this ?

Explanation:

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A gene is a _______________________. Group of answer choices display of the chromosome pairs of a cell complete set of an organi
Brrunno [24]

What is a gene?

  • According to Mendel something was being stably passed down, unchanged, from parent to offspring through the gametes, over successive generations. He called these things as ‘factors’ now called as genes. Genes, therefore, are the units of inheritance.
  • They contain the information that is required to express a particular trait in an organism.
  • Genes which code for a pair of contrasting traits are known as alleles, i.e., they are slightly different forms of the same gene.
  • There is no ambiguity that the genes are located on the DNA, it is difficult to literally define a gene in terms of DNA sequence.
  • The DNA sequence coding for tRNA or rRNA molecule also defines a gene. A cistron is defined as a segment of DNA coding for a polypeptide, the structural gene in a transcription unit could be said as monocistronic (mostly in eukaryotes) or polycistronic (mostly in bacteria or prokaryotes).

To learn more about transcription:

brainly.com/question/14136689

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3 0
1 year ago
In complete sentences, please explain why it is good to sweat during/after a workout. What might happen if an athlete did not sw
Nimfa-mama [501]
Sweating is the body's way of cooling itself. If you did not sweat, you could overheat the body and collapse from heat exhaustion.
7 0
3 years ago
Describe in words what occurs during the process represented by the photosynthesis equation. Include the importance of sunlight
8_murik_8 [283]

Photosynthesis usually takes place in the leaves. Leaf cells contain many chloroplasts (up to 50 per cell). These organelles contain a green pigment, chlorophyll, capable of capturing light energy. This energy is used to make sugar molecules from water drawn from the soil by the roots and carbon dioxide from the atmosphere, captured by the leaves. The sugars produced subsequently distributed in the different parts of the plant.

Here is the reaction of photosynthesis:

6 CO2 + 6 H2O + light energy ==> C6H12O6 (glucose) + 6 O2

But this balance is in fact broken down into two successive stages:

photochemical reactions (clear phase):

12 H2O + light ==> 6 O2 + chemical energy;

the Calvin cycle (dark phase):

6 CO2 + chemical energy ==> C6H12O6 + 6 H2O.

The first phase of photosynthesis, called clear phase, requires the illumination of the leaf. Chlorophyll, which is embedded in the thylakoid membrane, absorbs light energy. This energy absorption is accompanied by the degradation of water molecules and the release of oxygen.

In a second phase independent of light, called the dark phase, the energy absorbed by chlorophyll is used for the transformation of carbon dioxide molecules into sugar molecules.

The sugars made by photosynthesis are stored in the cell as starch, transformed into other organic molecules, such as proteins, or degraded in the mitochondria during respiration to meet the energy needs of the plant.

3 0
3 years ago
Read 2 more answers
Why does the swing of a pendulum become lower over time? (site 1)
kupik [55]

When the swing is raised and released, it will move freely back and forth due to the force of gravity on it. The swing continues moving back and forth without any extra outside help until friction between the air and the swing and between the chains and the attachment points slows it down and eventually stops it.

6 0
3 years ago
what is the phenotypic ratio that results from a dihybrid cross between two organisms and that are heterozygous for both traits
UkoKoshka [18]

Answer:

The phenotype ratio predicted for dihybrid cross is 9:3:3:1.

Explanation:

A dihybrid cross tracks two traits. Both parents are heterozygous, and one allele for each trait exhibits complete dominance *. This means that both parents have recessive alleles, but exhibit the dominant phenotype. (Sorry if i Misspelled some words)

5 0
3 years ago
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