Answer:
Auricle/pinna
Explanation:
The pinna is a flap of skin and cartilage which partially covers the opening to the external auditory meatus. It collects and concentrates sound waves into the auditory meatus. The pinna leads into the external auditory meatus which is a tube that directs sound waves to the eardrum also called the tympanic membrane.
Answer:
Impulsive behavior
Explanation:
They don't think before they move or do something and it is normally something that could cause harm or get into trouble.
Polyploid, Triploid and Euploid terms should not be used to describe chromosome 12
What are chromosomes?
- The thread-like chromosomes that convey the genetic information from cell to cell are formed of protein and a single DNA molecule.
- Chromosomes are found in the nucleus of cells in both plants and animals, including humans.
- There are 46 chromosomes in all, including 22 pairs of numbered chromosomes (autosomes) and one pair of sex chromosomes (XX or XY).
- Children receive half of their chromosomes from their mother and half from their father since each pair comprises two chromosomes, one from each parent.
- The dissolution of the nucleus during cell division allows for the visualization of chromosomes under a microscope.
- Living things have different numbers and shapes of chromosomes.
- One or two circular chromosomes may be found in most bacteria.
- All animals and plants, including humans, have linear chromosomes.
- Actually, there are a certain number of chromosomes for each species of plants and animals.
- For instance, a fruit fly has four pairs of chromosomes whereas a dog has 39 and a rice plant has 12.
- The first 22 pairs of chromosomes in humans are known as autosomes, whereas the twenty-third pair is known as the sex chromosomes.
- Typically, people with two X chromosomes (XX) are biologically female, whereas people with one X and one Y chromosome are naturally male (XY).
- There are, however, several exception to these laws.
Chromosomes 12:
- Each human cell typically has 23 pairs of the 46 chromosomes that make up the human genome.
- One of the pairings is made up of two copies of chromosome 12, one from each parent.
- Between 4% and 4.5 percent of all DNA in cells are found on chromosome 12, which covers almost 134 million DNA base pairs.
Hence, Polyploid, Triploid and Euploid terms should not be used to describe chromosome 12
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Answer:
Law of Independent assortment
Explanation:
Gregor Mendel, who was regarded the father of Genetics, discovered principles that governs inheritance in his experiments. He discovered that the alleles of a gene will separate into gametes when he performed a crossed involving a single gene or character like height, pea color etc. He proposed his law of segregation based on this.
However, he considered two characters or genes in his cross, which he called a DIHYBRID cross. He discovered that the alleles of each different gene separates into gametes independently of one another i.e. without one gene influencing the other in each gamete. He called this principle his LAW OF INDEPENDENT ASSORTMENT.
He obtained a 9:3:3:1 phenotypic ratio for the F2 dihybrid offsprings which is only possible if each gamete equally likely contains two alleles of the two different genes in different combinations.
Answer:
Algunos organismos tienen una célula
Las bacterias no tienen tejido
Explanation:
