Answer:
The correct answer is differentiation.
Explanation:
The process of development during which the cells of the embryo specialize and the origination of different tissue compositions take place is known as embryonic differentiation. An organism is formed of distinct cell types, with each exhibiting specific functions. During embryogenesis, differentiation of cells is essential for the cell, organ, tissue, and organism's identity.
With the development of an embryo, the individual cells start to differentiate. In the embryo, the differentiation of cells takes place by both extracellular and internal cellular factors. The phenomenon of embryonic development plays an essential part in the proper development of an organism.
Answer:
The correct answer is - =X+Y males and XwXwY females
Explanation:
during meiosis, XXY females are prone particularly to X chromosome during meiosis. This nondisjunction can lead to the production of both X+Y red-eye male and XwXwY white eye females.
The red-eye male has resulted from the fertilization of X bearing sperm and Y bearing egg. The XwXwY is formed from Y bearing sperm and an egg with two chromosome fertilization.
Answer:
The correct answer is - Altimeter.
Explanation:
An altimeter is a sensor that is present in the new Fitbit. Altimeter measures changes in air pressure or barometric pressure. This sensor is used to count floors and use each 10 feet elevation as one floor.
Altimeter shows reading by the pressure of the air and every time the air pressure increases altitude is decreases and if air pressure decreases there is an elevation in altitude from sea level.
Endoskeleton is the internal support of the structure of an organism. an exoskeleton is the external support
Answer:
Please find the detailed explanation of this statement below
Explanation:
Firstly, a repressed gene is a gene whose expression has been inhibited or repressed. The lac operon in E.coli bacteria is a regulatory unit containing structural genes, a single promoter and operator regions. The promoter is the region where the transcription enzyme (RNA polymerase) binds to in order to transcribe the genes in the lac operon. The structural genes in the lac operon can only be expressed in the presence of lactose sugar.
However, in the absence of lactose, LAC REPRESSOR, which is a transcription factor (protein), prevents the binding of RNA polymerase to the PROMOTER region by binding to the OPERATOR region of the lac operon. This inhibits the expression of the lactose genes in the operon.
Note that, the structural genes in the lac operon (lacZ, lacY, lacA) code for proteins that help break down lactose sugar for energy in the E.coli bacteria. Therefore, a bacteria cell with a repressed lac operon will be unable to degrade lactose sugar.