➜ <u>Mendel conducted breeding experiments with garden peas</u>:
[i] He studied plants (pure) of a tall/short varities.
[ii] He crossed them and obtained F1 progeny.
[iii] He found that F1 progeny was all tall plants.
[iv] He selfed the (hybrid) plants if F1 progeny.
[v] He found that in F2 progeny there were tall as well as short plants.
[vi] The three quarter plants were tall and one quarter was short.
(or any other contrasting character may be taken).
<u>Note</u>: Here, F1 means <u>First fillial generation</u> and F2 means <u>Second fillial generation</u>.
Answer:
the 4rd one
Explanation:
i ask Google and socratic
Answer:
D. the genetic material of living organisms
Explanation:
Based on research, microbes have been recently associated with the following four diseases that were once considered noninfectious:
- gastric ulcers
- multiple sclerosis
- cancer
- diabetes
<h3>What are microbes?</h3>
Microbes refers to microscopic organisms, that is organisms which can not be seen with the ordinary eye but with the aid of a microscope.
Microbes consists of the following organisms:
- bacteria
- fungi
- protozoa
- viruses
Some microbes are not harmful while many other microbes are harmful and are known to be the causative organisms for many diseases.
The diseases that are caused by microbes can be passed from one person to another and are known as infectious diseases.
However, recent research have linked microbes to some diseases such as gastric ulcer, multiple sclerosis, cancer, and diabetes which were once considered non-infectious.
Example are given below;
- gastric ulcer caused by <em>Helicobacter pylori</em>
- Multiple sclerosis caused by Epstein-Barr virus
- Cancer caused by human papilloma viruses, hepatitis B and C viruses
- Diabetes caused by E. coli and Candida spp.
In conclusion, microbes cause infectious diseases.
Learn more about microbes at: brainly.com/question/8695285
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Note that the complete question is given below as:
Based on research, microbes have been recently associated with which four of the following diseases that were once considered noninfectious?
muscular dystrophy
multiple scleriosis
diabetes
cystic fibrosis
gastric ulcer
cancer
gastric ulcers
multiple scleriosuis
cancer
diabetes
If the shape of radish is under the control of one gene, for example A than we can say:
AA is dominant homozygous genotype-round radish phenotype,
aa is recessive homozygous genotype-long radish phenotype
If we cross round and long radish:
P: AA x aa
F1: Aa Aa Aa Aa
Aa is heterozygous genotype-oval phenotype
If we than cross the F1:
Aa x Aa
F2: AA Aa Aa aa
This means that the ratio between the phenotypes woul be 1:2:1 (round:oval:long).