Answer:
Crossing over
Explanation:
Crossing over is the process during which two chromatids of two homologous chromosomes exchange part of their genetic segments. It occurs during the pachytene stage of prophase I of meiosis I.
Linked genes are mostly inherited together and do not exhibit independent assortment. However, when linked genes are present far apart from each other on the same chromosome, crossing over can occur between them to produce recombinant chromatids. Therefore, crossing over can break the linkage and produce recombinant progeny as it occurs during the independent assortment of unlinked genes.
Answer:
The correct answer is A) differentiated cells retain all the genes of the zygote
Explanation:
A plant can be cloned from the somatic cells which shows that the differentiated cell of plants have the ability to divide and differentiate to produce a new plant. This property of the cell is called totipotency.
All the cells in plants are not totipotent but some cells under proper condition can show the property of totipotency. Totipotency property shows that the differentiated cell is having all the genes that were present in the zygote.
This property of plant cells is used by scientist in plant tissue culture to produce plants for research and other purposes. So the right answer is A.
The two things that the doctor may be of interest to barb’s medical
history is her hip replacement procedure and her asthma. Although her hip
replacement procedure was done long ago but she should still be cautious on her
movements especially carrying her grandchildren or bringing heavy load. Moreover,
her asthma attack must also be carefully monitored particularly her labored breathing
pattern.
The correct answer is
Because the needle can't hold as much heat as the bucket of water. Therefore the water can hold and disperse more heat and the needle will be hotter.
