False
Hoped it helped have a wonderful day.
Answer:
tRNA and mRNA can leave the nucleus.
Explanation:
tRNA, when mature and correct, can leave the nucleus and enter the cytoplasm. mRNA can leave the nucleus through pores in the nuclear membrane. However, DNA cannot leave the nucleus, it has to be transcribed into RNA.
Answer: C. Chromosomes
When an egg and sperm cell
unite, fertilization follows. The chromosomes carry the genes that will be
transferred to the offspring. They have threadlike bodies that made up of DNA
and protein that carries hereditary information, which is used to help a cell
grow and reproduce.
Furthermore, humans have 46
chromosomes and 23 in each sex cell and they are found in the nucleus of a
cell.
Answer:
C
Explanation:
The flagella of the sperm are used to help it swim through the vagina and uterus so it reaches the fallopian tubes from where it will meet the egg and fertilize. The ATPs are found in the many mitochondria organelles in the sperm are used to generate the required energy to swim and breach the walls of the egg during fertilization.
Answer:
Iron deficiency is considered the first nutritional disorder in the world. And it is that iron is essential for our body since it participates in many metabolic processes, especially in the formation of hemoglobin (Hb) contained in red blood cells.
Hemoglobin is primarily responsible for transporting oxygen to tissues and is also essential for DNA synthesis, cellular respiration and for key metabolic reactions to be carried out, as well as for proper functioning of the immune system is for this reason. The body feels fatigued due to lack of iron.
Explanation:
Iron deficiency and anemia occur mainly in women. The causes are several, and range from poor diet (following a very strict vegetarian diet, not consuming red meat, drinking a lot of tea or a lot of fiber), taking medications that prevent its absorption, being pregnant or having insufficient iron absorption, which is It is mainly due to intestinal surgery or diseases of the intestine, such as Crohn's disease or celiac disease.
The main cause of iron deficiency and anemia is blood loss. “In developed countries it is mostly due to menstrual losses in premenopausal women and digestive bleeding in men and postmenopausal women
.
