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katrin2010 [14]
3 years ago
11

When a plant is attacked by a pathogen, it may respond by carrying out a defense that causes cell and tissue death near the infe

ction site, restricting the spread of the pathogen. What is the name of this defense
Biology
1 answer:
lora16 [44]3 years ago
7 0

Answer:

Hypersensitive response

Explanation:

<em>The hypersensitive response is a defense mechanism developed by certain plants in response to the invasion of pathogens. </em>

<em>This mechanism features include the rapid death of cells and tissues surrounding the infection site so as to limit the invasion of the pathogens as pathogens require living cells in order to continue spreading.</em>

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Differentiate between respiration in the presence and absence of oxygen ​
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Answer:

breakdown of glucose in the absence of oxygen to produce energy is called as anaerobic respiration. Aerobic respiration occurs in the cytoplasm to mitochondria, while anaerobic respiration occurs in the cytoplasm only.

Explanation:

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3 years ago
if a mutation occurs in the somatic tissue, approximately how many of the gametes will carry the mutation?
Mrac [35]

None: Only those mutations that occur in the germ line and result in gametes will have a chance of being passed on to progeny. An alteration in DNA that occurs after conception.

Somatic mutations can occur in any of the body's cells except germ cells (sperm and egg) and are therefore not passed on to children. These alterations can (but not always) cause cancer or other diseases. Mutations in somatic cells are called somatic mutations. Because they do not occur in the cells that give rise to gametes, the mutation is not transmitted to the next generation sexually. Human somatic cells have 46 chromosomes: 22 pairs and 2 sex chromosomes that may or may not form a pair. This is the 2n or diploid condition. Human gametes have 23 chromosomes, each of 23 unique chromosomes, one of which is a sex chromosome. Somatic cells are the cells in the body other than sperm and eggs (called germ cells). In humans, somatic cells are diploid, meaning they contain two sets of chromosomes, one inherited from each parent. Mutations in a somatic cell occur in somatic cells and are transmitted by mitosis, resulting in cancer. However, mutations in a gamete are passed on by meiosis, resulting in mutated offspring. A genetic mutation occurs during DNA replication, and chromosomal mutations occur during meiosis.

To learn more about alteration please click on below link

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3 0
1 year ago
Small structures inside cells that perform specific functions are called:
frosja888 [35]

Answer:

B. Organelles

Explanation:

they are called

6 0
2 years ago
Read 2 more answers
How many chromosomes in the dna?​
wariber [46]
Should be 23 I think?
5 0
3 years ago
URGENT <br> The different forms of a gene for a given trait are called???
aalyn [17]

Answer:

Allele

Explanation:

Genes come in multiple forms, or versions. Each of these forms is called an allele. For example, the gene responsible for the hair color trait has many alleles: an allele for brown hair, an allele for blonde hair, an allele for red hair, and so on.

3 0
3 years ago
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