Karyotypes can be studied to determine an organism's chromosomal makeup and to detect genetic defects. Turne syndrome occurs when a female has an incomplete set of sex chromosomes.Symptoms of Turner syndrome inclu swollen hands and feet.short stature, and infertility,Which type of chromosomal mutation is responsible for causin Turner syndrome? polyploidy tetraploidy aneuploidy trisomy

17. What do evolutionary biologists study? the fossil record and geologic time genetic changes within and among populations the differences between microevolution and macroevolution phenotypic changes due to the environment

What statement describes the result of meiosis? A. The two daughter cells each have a set of chromosomes that are identical. B. Four haploid cells combine to form two diploid cells. C. The gametes have half the number of chromosomes of the parent cell. D. Unnecessary chromosomes are removed from the cell.

Which soil-based compounds do plants use to create amino acids from glucose? carbon hydrogen nitrogen fluoride

All characteristics of life must be met to qualify as living. True False

Fill in the Blank Question The principal users of the atmospheric carbon dioxide are photosynthetic square organisms. Need help? Review these concept resources.

Fill in the Blank Question in the embryo neurons are guided to their positions and may be stimulated to specialize by square Need help? Review these concept resources

1. What is main difference between Photosystem II and Photosystem I? Photosystem I produces NADPH. Chlorophyll a and b absorb energy from sunlight during Photosystem I Photosystem Il is a part of the light-dependent stage. Photosystem I is a part of the light-independent phase. Electrons are energized and exit the pigment molecules during Photosystem II.

How are the plants able to perform photosynthesis without the Sun?

Only a select few body systems play a role in maintaining homeostasis. True False

Hot Questions

Select the correct answer. Which of the following phrases best explains the role of a habitat? A. provides interactions with other organisms B. provides water C. provides a place to reproduce D. provides a place to live

Which type of membrane protein moves sodium and potassium through the nerve cell membrane? Junction protein Transport protein Receptor protein Channel protein Enzymatic protein Cell recognition protein

Multiple Select Question Select all that apply Choose all that result from contraction of the lateral muscle of the thigh. abduction of the thigh lateral rotation of the thigh extension of the thigh adduction of the thigh medial rotation of the thigh

Match the Process to the Pool Movement Carbon Moves From -To __ Atmosphere __ __ Bioshpere __ __ __ __ __ Process Photosynthesis Respiration Decomposition Fossil Fuel Combustion __ __

The kidney is associated with which system? A. Endocrine system B. Cardiovascular system C. Skeletal system D. Respiratory system E. Nervous system

What is the direct effect of: Decreased ADH Only CO increases Only CO decreases Only BP increases Only BP decreases Both CO and BP increase Both CO and BP decrease

What are the four phases of a typical bacterial growth curve in order? Exponential, Lag, Death Stationary Lag, Exponential, Stationary, Death Death, Lag, Exponentlal, Stationary $Lag,$ Stationary, Death,Exponential

8. Oxygenated blood from the lungs enters the heart at the: a. left ventricle b. right ventricle c. left atrium d. right atrium

Bacteria that grow optimally at pH levels below 5 are classified as: Neutrophiles Alkaliphiles Acidophiles Halophiles

Which group of bacteria can survive and grow at temperatures below $15^{\circ }C$ Thermophiles Psychrophiles Mesophiles Hyperthermophiles