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nadya68 [22]
3 years ago
13

I know it's in the wrong subject but I still need help ASAP save me

Biology
2 answers:
lora16 [44]3 years ago
7 0
Louis Pasteur's 1859 experiment is widely seen as having settled the question of spontaneous generation. He boiled a meat broth in a swan neck flask. The bend in the neck of the flask prevented falling particles from reaching the broth, while still allowing the free flow of air.
pishuonlain [190]3 years ago
5 0

its to hard but you can answer this

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explain how complete dominance, co dominance, incomplete dominance, and sex linked traits are inherited and expressed differentl
dlinn [17]
<span> COMPLETE DOMINANCE:
</span>
<span>Mendel concluded that some alleles are dominant and others are recessive. When one dominant allele is present, it's enough to make the recessive allele unexpressed (this is what happens in heterozygous individuals). In other words, it 'hides' or masks the recessive allele.

CO-DOMINANCE:

-a condition in which both alleles are dominant.
</span>
There are alleles that have the capacity of dominating at the same time, and when an organism is heterozygotic, both alleles are expressed.
For example, a white chicken(WW) crossed with a black chicken (BB):  100% of the offspring being WB. With this genotype, they have black feathers and white feathers.
It's not a blend of colors, but a case where both are expressing.

INCOMPLETE DOMINANCE:
-a condition with none of the alleles is dominant or recessive, so the traits blend in the phenotype.

Some alleles are not completely dominant, and when that's the case the phenotype of a heterozygous organism will be a mix between the phenotypes of its homozygous parents.

For example:
plant 1: RR -red
plant 2: rr- white

By crossing this plants we will obtain 100%  of the offspring with a color mix: pink.(genotype: Rr)
Red and white are not completely dominating so it results in a blend of colors.

SEX LINKED TRAITS

Sex chromosomes contain genes that determine the sex of a person. Two X chromosomes result in a female and one X plus a Y result in a male.

In those chromosomes, there are genes specific for each gender, and in those chromosomes, there are genes that code for certain traits- the sex-linked traits.
These traits will be inherited according to the sex chromosomes they receive from their parents.









5 0
3 years ago
What role did social media play in the outbreak ? Contagion movie
Elan Coil [88]
The social media play the role of the main issue in the outbreak in the Contagion movie. The character Krumwiede makes much false information with his blogs which create a different problem of contagious thing despite the virus<span>. Many people trust the blogs' information. This information made them buy a contagious virus rather than a medicine.</span>
4 0
3 years ago
Unspecialized human cells are called ____________.
Blababa [14]

Answer:

stem cells

Explanation:

Stem cells differ from other kinds of cells in the body. All stem cells—regardless of their source—have three general properties: they are capable of dividing and renewing themselves for long periods; they are unspecialized; and they can give rise to specialized cell types.

4 0
3 years ago
What type of amino acids would you expect to find in the transmembrane portion of a membrane
Alexandra [31]

Answer:

The most common tertiary structures of these proteins are transmembrane helix bundle and beta barrel. The portion of the membrane proteins that are attached to the lipid bilayer consist mostly of hydrophobic amino acids.

Explanation:

.......................

6 0
2 years ago
If energy is added to a system in the form of heat, what 2 things can occur?
natka813 [3]
The internal energy will increase, work is done by the system
8 0
2 years ago
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