Explanation:
Let's reflect on heredity:
Females are birthed when two X chromosomes are paired up (XX).
Males are birthed when one X chromosome and one Y chromosome are paired up (XY).
If the woman has blood type AB and her husband has blood type O, their children could have any blood type associated with that. Try setting up a punnett square!
You will get:
2/4 AO
2/4 BO
So, the odds of a child getting OO are 0.
When species overproduce offspring, it can lead to competition for resources and negative impacts on the environment and survival rates.
When species overproduce offspring, it can lead to competition for resources such as food, water, and shelter. This competition can result in a decrease in the overall fitness and survival rates of the offspring. Additionally, overpopulation can put pressure on the environment and lead to negative impacts such as habitat destruction and increased spread of diseases.
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Answer:
The correct answer will be-
Roots, stem, leaves, dermal layer, vascular tissue, dermal tissue and the ground tissue (All of them).
Explanation:
Transpiration is a process involved in the suction of the water from the ground tissue as transpiration is the loss of water from the leaves.
The transpiration begins with the absorption of the water from the soil through epidermis which is a part of the dermal tissue. The water is then transported through xylem which is a part of the vascular tissue in the stem. The water then reaches the leaves in parenchyma cells especially which is ground tissue and then is released through stomata a part of the dermal tissue.
Thus, all of them is the correct answer.
All of the above!!!!!!!!!!!!!!!!!!!!
Correct Answer: A). Dissecting microscopes and compound light microscopes
After magnification the object appears larger in size that is measured by the magnifying power. It can be found out by dividing the focal length of the scanning object to the focal length of the eye piece. From the above given option the greatest difference that is found in the magnifying power is between the dissecting microscope and compound light microscope.
Hence, the correct answer would be option A.
Amongst the options provided, the biggest difference in magnification power is between transmission electron microscopes and dissecting microscopes. Dissecting microscopes provide lesser magnification but enable three-dimensional viewing, while electron microscopes offer superior magnification and detail, at the cost of the specimen's life.
Therefore, the correct answer is option b.
The greatest difference in magnifying power lies between b. transmission electron microscopes and dissecting microscopes.
Dissecting microscopes provide lower magnification, typically ranging between 20 to 80 times the object size, and are suitable for viewing larger objects such as tissues (Fig 3.2b). They also offer a three-dimensional view of the specimen.
On the other hand, transmission electron microscopes utilize a beam of electrons instead of light.
This mechanism facilitates much higher magnification and detail while providing superior resolving power. However, this method requires the destruction of the specimen and cannot be used for viewing living cells.
Learn more about difference in magnification power here:
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Answer:
The correct answer is Gneiss.
Explanation:
Metamorphic rocks refer to the rocks that get modified due to pressure, heat, and chemical procedures, generally while buried deep underneath the surface of the Earth. Getting exposed to these extreme conditions change the texture, mineralogy, and chemical composition of the rocks.
There are two fundamental kinds of metamorphic rocks known, these are foliated metamorphic rocks like gneiss and non-foliated metamorphic rocks like quartzite. Of the metamorphic rocks, the highest grade metamorphic rock is gneiss. It exhibits a banded appearance and is formed of granular mineral grains. It usually comprises enough amount of feldspar or quartz minerals.
Answer:
Gneiss
Explanation:
The Gneiss rock is the highest grade metamorphic rock, contains bands of easily visible quartz, feldspar, and/or mica.
all yellow
B.
all green
C.
three-fourths yellow and one-fourth green
D.
three-fourths green and one-fourth yellow
Answer:
The correct answer would be A. all yellow.
Let "Y" be the dominant allele and "y" be the recessive allele of the gene responsible for the color of the seeds.
Dominant allele "Y" codes for the yellow color of the seeds when present in homozygous as well as heterozygous condition whereas recessive allele "y" codes for the green color of the seeds only when present in homozygous condition.
Now, the genotype of a true-breeding plant with yellow seeds would be YY and that of a true-breeding plant with green seeds would be yy.
The gametes formed by yellow seed plant would be Y and gametes formed by green seed plant would be y.
The cross will result in the production of offspring each with genotype Yy.
Hence, all the offspring plants would produce yellow seeds as yellow is a dominant character.
The correct answer is option C
Unipotent stem cells are those stem cells that can form cells of one lineage only. An adult would be having the maximum number of unipotent stem cell as it has gone through the process of cell differentiation and the cell have been differentiated into different kinds of cells. For example: skin stem cells
The stem cells of embryo are mainly pleuripotent and multipotent that can form cells of different lineages.