Answer:
The first one and second one
Explanation:
A heterozygous species contain one dominant and one recessive allele. A cross between a purebred tall and short plant will result in 100% tall offspring. Thus, option d is correct.
<h3>What is a genetic cross?</h3>
A genetic cross is a representation of the gametes produced by the two parent species that will undergo the process of fertilization to produce offspring. The crosses can include the heterozygous and purebred species.
The TT allele is a purebred allele that codes for tallness, whereas the tt allele is a purebred recessive allele that codes for shortness. The cross between TT and tt is attached to the image below.
From the cross, it can be said that all the offspring produced are heterozygous tall as there are no offspring with purebred dominant and recessive alleles.
Therefore, option D. 100% of offspring are tall.
Learn more about genetic cross here:
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Answer:
The correct answer will be- seminiferous tubules of scrotum.
Explanation:
Spermatogenesis is the process of formation of male gametes or sperms. The process begins when spermatogonia in seminiferous tubules divide by mitosis and meiosis I and becomes primary spermatocytes and meiosis II and form secondary spermatocyte.
The secondary spermatocyte differentiates into sperms where the large Sertoli cells nourish the immature sperm. The sperms get stored in the epididymis where also they get nourished.
Thus, seminiferous tubules of the scrotum are the correct answer.
Answer:
Limiting factors control the numbers of individuals in a population, sometimes maintain it at or near the carrying capacity. 4. Analyze the impact a nonnative species might have on a native species in terms of population dynamics. Nonnative species might out-compete the native species or might prey upon them.
Explanation:
The provided question is not complete, however the complete question is as follows:
Of the four major types of membranes, the one consisting of dense connective tissue overlying loose connective tissue is
A. serous membrane.
B. synovial membrane.
C. mucous membrane.
D. cutaneous membrane.
Answer:
The correct answer is option B. synovial membrane.
Explanation:
Synovial membranes are the connective tissue that is present within surrounding the joints that move freely such as elbow. These tissue membranes lack the epithelium layer in them.
These tissues are loose and thin in structure and coverings that protect tendons where they go through bony prominences. These tissues are consisting of dense irregular connective tissue present on top of the other loose tissues.
Thus, the correct answer is - option B. synovial tissue.
