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Lady_Fox [76]
3 years ago
5

How much genetic information is carried in a pollen grain compared to a regular cell in one of the plants leaves?

Biology
1 answer:
mash [69]3 years ago
6 0

Answer:

half

Explanation:

Pollen is composed of pollen grades which are microgametophytes of seed plants. This is one of two alternating phases in the life cycle of plants and algae. From these, the male gametes, also known as sperm cells will develop. As all gametes are haploid, the pollen grain will thus contain half of the genetic material found in a regular plant cell.

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When a single parent simply replicates its DNA and then divides, what occurs?
kykrilka [37]

Answer:

A cell division

Explanation:

6 0
3 years ago
One role of the pancreas is to help regulate blood glucose levels. Two types of cells in the pancreas, beta and alpha, serve as
solniwko [45]

1. Regulation of glucose blood levels is an example of negative feedback mechanism.

Negative feedback mechanism is a control mechanism involved in homeostasis maintain, in this case maintenance of glucose blood levels in normal range.

Negative feedback mechanism contains sensory system that detects the changes, control system that responds to change and activates mechanisms of effector system that reverse the changes in order to restore conditions to their normal levels.

• Pancreatic cells-sensors

• Insulin-control system

• Body cells- effector cells

2. Blood glucose levels change throughout the day because of the food consumption, but in healthy individuals levels of glucose are successfully regulated via the mechanism of hormones such as insulin and glucagon in a process called glucose blood regulation.

This tight regulation of pancreatic hormones is referred to as glucose homeostasis. Insulin lowers blood sugar and glucagon raises it.

3. If the beta cells are destroyed by an autoimmune disease (immune system attacks its own cells), there would be no insulin release, and consequently, the glucose blood levels would be increased.

Diabetes type I is a metabolic disorder caused by the destruction of insulin-producing pancreatic beta cells.


7 0
3 years ago
So why don’t we get pink flowers if we combine the genes of a Red Dominant flower with a white recessive flower? Please answer t
Marrrta [24]

Answer:

it wouldn't work

Explanation:

In a heterozygous genotype the dominant allele completely masks the effect of the recessive allele in the organism's phenotype.

6 0
2 years ago
Read 2 more answers
The prevention of the long term complications associated with poorly treated diabetes mellitus by the tight regulation of blood
Tanya [424]

Answer:

sugar level

Explanation:

Diabetes mellitus , in simple language known as the diabetes , is a group of metabolic disorders which are due to increased level of blood sugar over a long period of time .

The symptoms are -

feeling thirsty , frequent urination and increased hunger .

<u>Untreated diabetes can lead to many problems , even can be fatal .</u>

The acute problems due to diabetes are - hyperosmolar , ketoacidosis or death .

There can be some serious problems which are life long -

like stroke , foot ulcers , damage to the eyes , cardiovascular disease .

7 0
3 years ago
Any two uses of biotechnology related to human health
maxonik [38]
<h2>Answer:</h2>

The two important uses of biotechnology is the gene therapy and Genetic engineering.

<h3>Explanation:</h3>
  • Gene therapy is the manipulation of genes in the genetic make up of an individual to eradicate the inheritable genetic disorders.
  • The second use is the genetic engineering. Which is the genetic changes of an organism or micro organism to produce a desirable product.
  • For example the transfer of human gene into bacteria for the production of insulin.
  • Biotechnology is also used in the diagnostic techniques of genetic disorders.
4 0
3 years ago
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